Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | # |
| 2 | # Character device configuration |
| 3 | # |
| 4 | |
| 5 | menu "Character devices" |
| 6 | |
| 7 | config VT |
| 8 | bool "Virtual terminal" if EMBEDDED |
| 9 | select INPUT |
| 10 | default y if !VIOCONS |
| 11 | ---help--- |
| 12 | If you say Y here, you will get support for terminal devices with |
| 13 | display and keyboard devices. These are called "virtual" because you |
| 14 | can run several virtual terminals (also called virtual consoles) on |
| 15 | one physical terminal. This is rather useful, for example one |
| 16 | virtual terminal can collect system messages and warnings, another |
| 17 | one can be used for a text-mode user session, and a third could run |
| 18 | an X session, all in parallel. Switching between virtual terminals |
| 19 | is done with certain key combinations, usually Alt-<function key>. |
| 20 | |
| 21 | The setterm command ("man setterm") can be used to change the |
| 22 | properties (such as colors or beeping) of a virtual terminal. The |
| 23 | man page console_codes(4) ("man console_codes") contains the special |
| 24 | character sequences that can be used to change those properties |
| 25 | directly. The fonts used on virtual terminals can be changed with |
| 26 | the setfont ("man setfont") command and the key bindings are defined |
| 27 | with the loadkeys ("man loadkeys") command. |
| 28 | |
| 29 | You need at least one virtual terminal device in order to make use |
| 30 | of your keyboard and monitor. Therefore, only people configuring an |
| 31 | embedded system would want to say N here in order to save some |
| 32 | memory; the only way to log into such a system is then via a serial |
| 33 | or network connection. |
| 34 | |
| 35 | If unsure, say Y, or else you won't be able to do much with your new |
| 36 | shiny Linux system :-) |
| 37 | |
| 38 | config VT_CONSOLE |
| 39 | bool "Support for console on virtual terminal" if EMBEDDED |
| 40 | depends on VT |
| 41 | default y |
| 42 | ---help--- |
| 43 | The system console is the device which receives all kernel messages |
| 44 | and warnings and which allows logins in single user mode. If you |
| 45 | answer Y here, a virtual terminal (the device used to interact with |
| 46 | a physical terminal) can be used as system console. This is the most |
| 47 | common mode of operations, so you should say Y here unless you want |
| 48 | the kernel messages be output only to a serial port (in which case |
| 49 | you should say Y to "Console on serial port", below). |
| 50 | |
| 51 | If you do say Y here, by default the currently visible virtual |
| 52 | terminal (/dev/tty0) will be used as system console. You can change |
| 53 | that with a kernel command line option such as "console=tty3" which |
| 54 | would use the third virtual terminal as system console. (Try "man |
| 55 | bootparam" or see the documentation of your boot loader (lilo or |
| 56 | loadlin) about how to pass options to the kernel at boot time.) |
| 57 | |
| 58 | If unsure, say Y. |
| 59 | |
| 60 | config HW_CONSOLE |
| 61 | bool |
| 62 | depends on VT && !S390 && !UML |
| 63 | default y |
| 64 | |
| 65 | config SERIAL_NONSTANDARD |
| 66 | bool "Non-standard serial port support" |
| 67 | ---help--- |
| 68 | Say Y here if you have any non-standard serial boards -- boards |
| 69 | which aren't supported using the standard "dumb" serial driver. |
| 70 | This includes intelligent serial boards such as Cyclades, |
| 71 | Digiboards, etc. These are usually used for systems that need many |
| 72 | serial ports because they serve many terminals or dial-in |
| 73 | connections. |
| 74 | |
| 75 | Note that the answer to this question won't directly affect the |
| 76 | kernel: saying N will just cause the configurator to skip all |
| 77 | the questions about non-standard serial boards. |
| 78 | |
| 79 | Most people can say N here. |
| 80 | |
| 81 | config COMPUTONE |
| 82 | tristate "Computone IntelliPort Plus serial support" |
Alan Cox | 33f0f88 | 2006-01-09 20:54:13 -0800 | [diff] [blame] | 83 | depends on SERIAL_NONSTANDARD |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 84 | ---help--- |
| 85 | This driver supports the entire family of Intelliport II/Plus |
| 86 | controllers with the exception of the MicroChannel controllers and |
| 87 | products previous to the Intelliport II. These are multiport cards, |
| 88 | which give you many serial ports. You would need something like this |
| 89 | to connect more than two modems to your Linux box, for instance in |
| 90 | order to become a dial-in server. If you have a card like that, say |
| 91 | Y here and read <file:Documentation/computone.txt>. |
| 92 | |
| 93 | To compile this driver as modules, choose M here: the |
| 94 | modules will be called ip2 and ip2main. |
| 95 | |
| 96 | config ROCKETPORT |
| 97 | tristate "Comtrol RocketPort support" |
| 98 | depends on SERIAL_NONSTANDARD |
| 99 | help |
| 100 | This driver supports Comtrol RocketPort and RocketModem PCI boards. |
| 101 | These boards provide 2, 4, 8, 16, or 32 high-speed serial ports or |
| 102 | modems. For information about the RocketPort/RocketModem boards |
| 103 | and this driver read <file:Documentation/rocket.txt>. |
| 104 | |
| 105 | To compile this driver as a module, choose M here: the |
| 106 | module will be called rocket. |
| 107 | |
| 108 | If you want to compile this driver into the kernel, say Y here. If |
| 109 | you don't have a Comtrol RocketPort/RocketModem card installed, say N. |
| 110 | |
| 111 | config CYCLADES |
| 112 | tristate "Cyclades async mux support" |
| 113 | depends on SERIAL_NONSTANDARD |
| 114 | ---help--- |
| 115 | This driver supports Cyclades Z and Y multiserial boards. |
| 116 | You would need something like this to connect more than two modems to |
| 117 | your Linux box, for instance in order to become a dial-in server. |
| 118 | |
| 119 | For information about the Cyclades-Z card, read |
| 120 | <file:drivers/char/README.cycladesZ>. |
| 121 | |
| 122 | To compile this driver as a module, choose M here: the |
| 123 | module will be called cyclades. |
| 124 | |
| 125 | If you haven't heard about it, it's safe to say N. |
| 126 | |
| 127 | config CYZ_INTR |
| 128 | bool "Cyclades-Z interrupt mode operation (EXPERIMENTAL)" |
| 129 | depends on EXPERIMENTAL && CYCLADES |
| 130 | help |
| 131 | The Cyclades-Z family of multiport cards allows 2 (two) driver op |
| 132 | modes: polling and interrupt. In polling mode, the driver will check |
| 133 | the status of the Cyclades-Z ports every certain amount of time |
| 134 | (which is called polling cycle and is configurable). In interrupt |
| 135 | mode, it will use an interrupt line (IRQ) in order to check the |
| 136 | status of the Cyclades-Z ports. The default op mode is polling. If |
| 137 | unsure, say N. |
| 138 | |
| 139 | config DIGIEPCA |
| 140 | tristate "Digiboard Intelligent Async Support" |
Alan Cox | f2cf8e2 | 2005-09-06 15:16:44 -0700 | [diff] [blame] | 141 | depends on SERIAL_NONSTANDARD |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 142 | ---help--- |
| 143 | This is a driver for Digi International's Xx, Xeve, and Xem series |
| 144 | of cards which provide multiple serial ports. You would need |
| 145 | something like this to connect more than two modems to your Linux |
| 146 | box, for instance in order to become a dial-in server. This driver |
| 147 | supports the original PC (ISA) boards as well as PCI, and EISA. If |
| 148 | you have a card like this, say Y here and read the file |
| 149 | <file:Documentation/digiepca.txt>. |
| 150 | |
| 151 | To compile this driver as a module, choose M here: the |
| 152 | module will be called epca. |
| 153 | |
| 154 | config ESPSERIAL |
| 155 | tristate "Hayes ESP serial port support" |
Alan Cox | 33f0f88 | 2006-01-09 20:54:13 -0800 | [diff] [blame] | 156 | depends on SERIAL_NONSTANDARD && ISA && ISA_DMA_API |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 157 | help |
| 158 | This is a driver which supports Hayes ESP serial ports. Both single |
| 159 | port cards and multiport cards are supported. Make sure to read |
| 160 | <file:Documentation/hayes-esp.txt>. |
| 161 | |
| 162 | To compile this driver as a module, choose M here: the |
| 163 | module will be called esp. |
| 164 | |
| 165 | If unsure, say N. |
| 166 | |
| 167 | config MOXA_INTELLIO |
| 168 | tristate "Moxa Intellio support" |
Alan Cox | 33f0f88 | 2006-01-09 20:54:13 -0800 | [diff] [blame] | 169 | depends on SERIAL_NONSTANDARD |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 170 | help |
| 171 | Say Y here if you have a Moxa Intellio multiport serial card. |
| 172 | |
| 173 | To compile this driver as a module, choose M here: the |
| 174 | module will be called moxa. |
| 175 | |
| 176 | config MOXA_SMARTIO |
| 177 | tristate "Moxa SmartIO support" |
Al Viro | 1d25240 | 2005-09-05 23:30:15 -0700 | [diff] [blame] | 178 | depends on SERIAL_NONSTANDARD |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 179 | help |
| 180 | Say Y here if you have a Moxa SmartIO multiport serial card. |
| 181 | |
| 182 | This driver can also be built as a module ( = code which can be |
| 183 | inserted in and removed from the running kernel whenever you want). |
| 184 | The module will be called mxser. If you want to do that, say M |
| 185 | here. |
| 186 | |
| 187 | config ISI |
| 188 | tristate "Multi-Tech multiport card support (EXPERIMENTAL)" |
| 189 | depends on SERIAL_NONSTANDARD |
maximilian attems | 5ff2a7e | 2006-03-26 01:37:35 -0800 | [diff] [blame] | 190 | select FW_LOADER |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 191 | help |
| 192 | This is a driver for the Multi-Tech cards which provide several |
| 193 | serial ports. The driver is experimental and can currently only be |
| 194 | built as a module. The module will be called isicom. |
| 195 | If you want to do that, choose M here. |
| 196 | |
| 197 | config SYNCLINK |
| 198 | tristate "Microgate SyncLink card support" |
Al Viro | a553260 | 2005-05-04 05:39:42 +0100 | [diff] [blame] | 199 | depends on SERIAL_NONSTANDARD && PCI && ISA_DMA_API |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | help |
| 201 | Provides support for the SyncLink ISA and PCI multiprotocol serial |
| 202 | adapters. These adapters support asynchronous and HDLC bit |
| 203 | synchronous communication up to 10Mbps (PCI adapter). |
| 204 | |
| 205 | This driver can only be built as a module ( = code which can be |
| 206 | inserted in and removed from the running kernel whenever you want). |
| 207 | The module will be called synclink. If you want to do that, say M |
| 208 | here. |
| 209 | |
| 210 | config SYNCLINKMP |
| 211 | tristate "SyncLink Multiport support" |
viro@ZenIV.linux.org.uk | f91f4d9 | 2005-09-09 17:02:51 +0100 | [diff] [blame] | 212 | depends on SERIAL_NONSTANDARD |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 213 | help |
| 214 | Enable support for the SyncLink Multiport (2 or 4 ports) |
| 215 | serial adapter, running asynchronous and HDLC communications up |
| 216 | to 2.048Mbps. Each ports is independently selectable for |
| 217 | RS-232, V.35, RS-449, RS-530, and X.21 |
| 218 | |
| 219 | This driver may be built as a module ( = code which can be |
| 220 | inserted in and removed from the running kernel whenever you want). |
| 221 | The module will be called synclinkmp. If you want to do that, say M |
| 222 | here. |
| 223 | |
Paul Fulghum | 705b6c7 | 2006-01-08 01:02:06 -0800 | [diff] [blame] | 224 | config SYNCLINK_GT |
| 225 | tristate "SyncLink GT/AC support" |
Al Viro | 8ef9cf3 | 2006-02-01 06:07:15 -0500 | [diff] [blame] | 226 | depends on SERIAL_NONSTANDARD && PCI |
Paul Fulghum | 705b6c7 | 2006-01-08 01:02:06 -0800 | [diff] [blame] | 227 | help |
| 228 | Support for SyncLink GT and SyncLink AC families of |
| 229 | synchronous and asynchronous serial adapters |
| 230 | manufactured by Microgate Systems, Ltd. (www.microgate.com) |
| 231 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 232 | config N_HDLC |
| 233 | tristate "HDLC line discipline support" |
| 234 | depends on SERIAL_NONSTANDARD |
| 235 | help |
| 236 | Allows synchronous HDLC communications with tty device drivers that |
| 237 | support synchronous HDLC such as the Microgate SyncLink adapter. |
| 238 | |
| 239 | This driver can only be built as a module ( = code which can be |
| 240 | inserted in and removed from the running kernel whenever you want). |
| 241 | The module will be called n_hdlc. If you want to do that, say M |
| 242 | here. |
| 243 | |
| 244 | config RISCOM8 |
| 245 | tristate "SDL RISCom/8 card support" |
| 246 | depends on SERIAL_NONSTANDARD && BROKEN_ON_SMP |
| 247 | help |
| 248 | This is a driver for the SDL Communications RISCom/8 multiport card, |
| 249 | which gives you many serial ports. You would need something like |
| 250 | this to connect more than two modems to your Linux box, for instance |
| 251 | in order to become a dial-in server. If you have a card like that, |
| 252 | say Y here and read the file <file:Documentation/riscom8.txt>. |
| 253 | |
| 254 | Also it's possible to say M here and compile this driver as kernel |
| 255 | loadable module; the module will be called riscom8. |
| 256 | |
| 257 | config SPECIALIX |
| 258 | tristate "Specialix IO8+ card support" |
| 259 | depends on SERIAL_NONSTANDARD |
| 260 | help |
| 261 | This is a driver for the Specialix IO8+ multiport card (both the |
| 262 | ISA and the PCI version) which gives you many serial ports. You |
| 263 | would need something like this to connect more than two modems to |
| 264 | your Linux box, for instance in order to become a dial-in server. |
| 265 | |
| 266 | If you have a card like that, say Y here and read the file |
| 267 | <file:Documentation/specialix.txt>. Also it's possible to say M here |
| 268 | and compile this driver as kernel loadable module which will be |
| 269 | called specialix. |
| 270 | |
| 271 | config SPECIALIX_RTSCTS |
| 272 | bool "Specialix DTR/RTS pin is RTS" |
| 273 | depends on SPECIALIX |
| 274 | help |
| 275 | The Specialix IO8+ card can only support either RTS or DTR. If you |
| 276 | say N here, the driver will use the pin as "DTR" when the tty is in |
| 277 | software handshake mode. If you say Y here or hardware handshake is |
| 278 | on, it will always be RTS. Read the file |
| 279 | <file:Documentation/specialix.txt> for more information. |
| 280 | |
| 281 | config SX |
| 282 | tristate "Specialix SX (and SI) card support" |
| 283 | depends on SERIAL_NONSTANDARD |
| 284 | help |
| 285 | This is a driver for the SX and SI multiport serial cards. |
| 286 | Please read the file <file:Documentation/sx.txt> for details. |
| 287 | |
| 288 | This driver can only be built as a module ( = code which can be |
| 289 | inserted in and removed from the running kernel whenever you want). |
| 290 | The module will be called sx. If you want to do that, say M here. |
| 291 | |
| 292 | config RIO |
| 293 | tristate "Specialix RIO system support" |
Alan Cox | db31852 | 2006-03-24 03:18:30 -0800 | [diff] [blame] | 294 | depends on SERIAL_NONSTANDARD && !64BIT |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 295 | help |
| 296 | This is a driver for the Specialix RIO, a smart serial card which |
| 297 | drives an outboard box that can support up to 128 ports. Product |
| 298 | information is at <http://www.perle.com/support/documentation.html#multiport>. |
| 299 | There are both ISA and PCI versions. |
| 300 | |
| 301 | config RIO_OLDPCI |
| 302 | bool "Support really old RIO/PCI cards" |
| 303 | depends on RIO |
| 304 | help |
| 305 | Older RIO PCI cards need some initialization-time configuration to |
| 306 | determine the IRQ and some control addresses. If you have a RIO and |
| 307 | this doesn't seem to work, try setting this to Y. |
| 308 | |
| 309 | config STALDRV |
| 310 | bool "Stallion multiport serial support" |
| 311 | depends on SERIAL_NONSTANDARD |
| 312 | help |
| 313 | Stallion cards give you many serial ports. You would need something |
| 314 | like this to connect more than two modems to your Linux box, for |
| 315 | instance in order to become a dial-in server. If you say Y here, |
| 316 | you will be asked for your specific card model in the next |
| 317 | questions. Make sure to read <file:Documentation/stallion.txt> in |
| 318 | this case. If you have never heard about all this, it's safe to |
| 319 | say N. |
| 320 | |
| 321 | config STALLION |
| 322 | tristate "Stallion EasyIO or EC8/32 support" |
| 323 | depends on STALDRV && BROKEN_ON_SMP |
| 324 | help |
| 325 | If you have an EasyIO or EasyConnection 8/32 multiport Stallion |
| 326 | card, then this is for you; say Y. Make sure to read |
| 327 | <file:Documentation/stallion.txt>. |
| 328 | |
| 329 | To compile this driver as a module, choose M here: the |
| 330 | module will be called stallion. |
| 331 | |
| 332 | config ISTALLION |
| 333 | tristate "Stallion EC8/64, ONboard, Brumby support" |
| 334 | depends on STALDRV && BROKEN_ON_SMP |
| 335 | help |
| 336 | If you have an EasyConnection 8/64, ONboard, Brumby or Stallion |
| 337 | serial multiport card, say Y here. Make sure to read |
| 338 | <file:Documentation/stallion.txt>. |
| 339 | |
| 340 | To compile this driver as a module, choose M here: the |
| 341 | module will be called istallion. |
| 342 | |
| 343 | config AU1000_UART |
| 344 | bool "Enable Au1000 UART Support" |
| 345 | depends on SERIAL_NONSTANDARD && MIPS |
| 346 | help |
| 347 | If you have an Alchemy AU1000 processor (MIPS based) and you want |
| 348 | to use serial ports, say Y. Otherwise, say N. |
| 349 | |
| 350 | config AU1000_SERIAL_CONSOLE |
| 351 | bool "Enable Au1000 serial console" |
| 352 | depends on AU1000_UART |
| 353 | help |
| 354 | If you have an Alchemy AU1000 processor (MIPS based) and you want |
| 355 | to use a console on a serial port, say Y. Otherwise, say N. |
| 356 | |
| 357 | config QTRONIX_KEYBOARD |
| 358 | bool "Enable Qtronix 990P Keyboard Support" |
| 359 | depends on IT8712 |
| 360 | help |
| 361 | Images of Qtronix keyboards are at |
| 362 | <http://www.qtronix.com/keyboard.html>. |
| 363 | |
| 364 | config IT8172_CIR |
| 365 | bool |
| 366 | depends on QTRONIX_KEYBOARD |
| 367 | default y |
| 368 | |
| 369 | config IT8172_SCR0 |
| 370 | bool "Enable Smart Card Reader 0 Support " |
| 371 | depends on IT8712 |
| 372 | help |
| 373 | Say Y here to support smart-card reader 0 (SCR0) on the Integrated |
| 374 | Technology Express, Inc. ITE8172 SBC. Vendor page at |
| 375 | <http://www.ite.com.tw/ia/brief_it8172bsp.htm>; picture of the |
| 376 | board at <http://www.mvista.com/partners/semiconductor/ite.html>. |
| 377 | |
| 378 | config IT8172_SCR1 |
| 379 | bool "Enable Smart Card Reader 1 Support " |
| 380 | depends on IT8712 |
| 381 | help |
| 382 | Say Y here to support smart-card reader 1 (SCR1) on the Integrated |
| 383 | Technology Express, Inc. ITE8172 SBC. Vendor page at |
| 384 | <http://www.ite.com.tw/ia/brief_it8172bsp.htm>; picture of the |
| 385 | board at <http://www.mvista.com/partners/semiconductor/ite.html>. |
| 386 | |
| 387 | config A2232 |
| 388 | tristate "Commodore A2232 serial support (EXPERIMENTAL)" |
| 389 | depends on EXPERIMENTAL && ZORRO && BROKEN_ON_SMP |
| 390 | ---help--- |
| 391 | This option supports the 2232 7-port serial card shipped with the |
| 392 | Amiga 2000 and other Zorro-bus machines, dating from 1989. At |
| 393 | a max of 19,200 bps, the ports are served by a 6551 ACIA UART chip |
| 394 | each, plus a 8520 CIA, and a master 6502 CPU and buffer as well. The |
| 395 | ports were connected with 8 pin DIN connectors on the card bracket, |
| 396 | for which 8 pin to DB25 adapters were supplied. The card also had |
| 397 | jumpers internally to toggle various pinning configurations. |
| 398 | |
| 399 | This driver can be built as a module; but then "generic_serial" |
| 400 | will also be built as a module. This has to be loaded before |
| 401 | "ser_a2232". If you want to do this, answer M here. |
| 402 | |
| 403 | config SGI_SNSC |
| 404 | bool "SGI Altix system controller communication support" |
| 405 | depends on (IA64_SGI_SN2 || IA64_GENERIC) |
| 406 | help |
| 407 | If you have an SGI Altix and you want to enable system |
| 408 | controller communication from user space (you want this!), |
| 409 | say Y. Otherwise, say N. |
| 410 | |
Bruce Losure | e1e1974 | 2005-04-25 13:09:41 -0700 | [diff] [blame] | 411 | config SGI_TIOCX |
| 412 | bool "SGI TIO CX driver support" |
| 413 | depends on (IA64_SGI_SN2 || IA64_GENERIC) |
| 414 | help |
| 415 | If you have an SGI Altix and you have fpga devices attached |
| 416 | to your TIO, say Y here, otherwise say N. |
| 417 | |
| 418 | config SGI_MBCS |
| 419 | tristate "SGI FPGA Core Services driver support" |
Bruce Losure | ae40aae | 2005-04-04 13:23:00 -0700 | [diff] [blame] | 420 | depends on SGI_TIOCX |
Bruce Losure | e1e1974 | 2005-04-25 13:09:41 -0700 | [diff] [blame] | 421 | help |
| 422 | If you have an SGI Altix with an attached SABrick |
| 423 | say Y or M here, otherwise say N. |
| 424 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 425 | source "drivers/serial/Kconfig" |
| 426 | |
| 427 | config UNIX98_PTYS |
| 428 | bool "Unix98 PTY support" if EMBEDDED |
| 429 | default y |
| 430 | ---help--- |
| 431 | A pseudo terminal (PTY) is a software device consisting of two |
| 432 | halves: a master and a slave. The slave device behaves identical to |
| 433 | a physical terminal; the master device is used by a process to |
| 434 | read data from and write data to the slave, thereby emulating a |
| 435 | terminal. Typical programs for the master side are telnet servers |
| 436 | and xterms. |
| 437 | |
| 438 | Linux has traditionally used the BSD-like names /dev/ptyxx for |
| 439 | masters and /dev/ttyxx for slaves of pseudo terminals. This scheme |
| 440 | has a number of problems. The GNU C library glibc 2.1 and later, |
| 441 | however, supports the Unix98 naming standard: in order to acquire a |
| 442 | pseudo terminal, a process opens /dev/ptmx; the number of the pseudo |
| 443 | terminal is then made available to the process and the pseudo |
| 444 | terminal slave can be accessed as /dev/pts/<number>. What was |
| 445 | traditionally /dev/ttyp2 will then be /dev/pts/2, for example. |
| 446 | |
| 447 | All modern Linux systems use the Unix98 ptys. Say Y unless |
| 448 | you're on an embedded system and want to conserve memory. |
| 449 | |
| 450 | config LEGACY_PTYS |
| 451 | bool "Legacy (BSD) PTY support" |
| 452 | default y |
| 453 | ---help--- |
| 454 | A pseudo terminal (PTY) is a software device consisting of two |
| 455 | halves: a master and a slave. The slave device behaves identical to |
| 456 | a physical terminal; the master device is used by a process to |
| 457 | read data from and write data to the slave, thereby emulating a |
| 458 | terminal. Typical programs for the master side are telnet servers |
| 459 | and xterms. |
| 460 | |
| 461 | Linux has traditionally used the BSD-like names /dev/ptyxx |
| 462 | for masters and /dev/ttyxx for slaves of pseudo |
| 463 | terminals. This scheme has a number of problems, including |
| 464 | security. This option enables these legacy devices; on most |
| 465 | systems, it is safe to say N. |
| 466 | |
| 467 | |
| 468 | config LEGACY_PTY_COUNT |
| 469 | int "Maximum number of legacy PTY in use" |
| 470 | depends on LEGACY_PTYS |
| 471 | range 1 256 |
| 472 | default "256" |
| 473 | ---help--- |
| 474 | The maximum number of legacy PTYs that can be used at any one time. |
| 475 | The default is 256, and should be more than enough. Embedded |
| 476 | systems may want to reduce this to save memory. |
| 477 | |
| 478 | When not in use, each legacy PTY occupies 12 bytes on 32-bit |
| 479 | architectures and 24 bytes on 64-bit architectures. |
| 480 | |
| 481 | config PRINTER |
| 482 | tristate "Parallel printer support" |
| 483 | depends on PARPORT |
| 484 | ---help--- |
| 485 | If you intend to attach a printer to the parallel port of your Linux |
| 486 | box (as opposed to using a serial printer; if the connector at the |
| 487 | printer has 9 or 25 holes ["female"], then it's serial), say Y. |
| 488 | Also read the Printing-HOWTO, available from |
| 489 | <http://www.tldp.org/docs.html#howto>. |
| 490 | |
| 491 | It is possible to share one parallel port among several devices |
| 492 | (e.g. printer and ZIP drive) and it is safe to compile the |
| 493 | corresponding drivers into the kernel. |
| 494 | |
| 495 | To compile this driver as a module, choose M here and read |
| 496 | <file:Documentation/parport.txt>. The module will be called lp. |
| 497 | |
| 498 | If you have several parallel ports, you can specify which ports to |
| 499 | use with the "lp" kernel command line option. (Try "man bootparam" |
| 500 | or see the documentation of your boot loader (lilo or loadlin) about |
| 501 | how to pass options to the kernel at boot time.) The syntax of the |
| 502 | "lp" command line option can be found in <file:drivers/char/lp.c>. |
| 503 | |
| 504 | If you have more than 8 printers, you need to increase the LP_NO |
| 505 | macro in lp.c and the PARPORT_MAX macro in parport.h. |
| 506 | |
| 507 | config LP_CONSOLE |
| 508 | bool "Support for console on line printer" |
| 509 | depends on PRINTER |
| 510 | ---help--- |
| 511 | If you want kernel messages to be printed out as they occur, you |
| 512 | can have a console on the printer. This option adds support for |
| 513 | doing that; to actually get it to happen you need to pass the |
| 514 | option "console=lp0" to the kernel at boot time. |
| 515 | |
| 516 | If the printer is out of paper (or off, or unplugged, or too |
| 517 | busy..) the kernel will stall until the printer is ready again. |
| 518 | By defining CONSOLE_LP_STRICT to 0 (at your own risk) you |
| 519 | can make the kernel continue when this happens, |
| 520 | but it'll lose the kernel messages. |
| 521 | |
| 522 | If unsure, say N. |
| 523 | |
| 524 | config PPDEV |
| 525 | tristate "Support for user-space parallel port device drivers" |
| 526 | depends on PARPORT |
| 527 | ---help--- |
| 528 | Saying Y to this adds support for /dev/parport device nodes. This |
| 529 | is needed for programs that want portable access to the parallel |
| 530 | port, for instance deviceid (which displays Plug-and-Play device |
| 531 | IDs). |
| 532 | |
| 533 | This is the parallel port equivalent of SCSI generic support (sg). |
| 534 | It is safe to say N to this -- it is not needed for normal printing |
| 535 | or parallel port CD-ROM/disk support. |
| 536 | |
| 537 | To compile this driver as a module, choose M here: the |
| 538 | module will be called ppdev. |
| 539 | |
| 540 | If unsure, say N. |
| 541 | |
| 542 | config TIPAR |
| 543 | tristate "Texas Instruments parallel link cable support" |
| 544 | depends on PARPORT |
| 545 | ---help--- |
| 546 | If you own a Texas Instruments graphing calculator and use a |
| 547 | parallel link cable, then you might be interested in this driver. |
| 548 | |
| 549 | If you enable this driver, you will be able to communicate with |
| 550 | your calculator through a set of device nodes under /dev. The |
| 551 | main advantage of this driver is that you don't have to be root |
| 552 | to use this precise link cable (depending on the permissions on |
| 553 | the device nodes, though). |
| 554 | |
| 555 | To compile this driver as a module, choose M here: the |
| 556 | module will be called tipar. |
| 557 | |
| 558 | If you don't know what a parallel link cable is or what a Texas |
| 559 | Instruments graphing calculator is, then you probably don't need this |
| 560 | driver. |
| 561 | |
| 562 | If unsure, say N. |
| 563 | |
Ryan S. Arnold | 45d607e | 2006-03-27 21:25:16 +0200 | [diff] [blame] | 564 | config HVC_DRIVER |
| 565 | bool |
| 566 | help |
| 567 | Users of pSeries machines that want to utilize the hvc console front-end |
| 568 | module for their backend console driver should select this option. |
| 569 | It will automatically be selected if one of the back-end console drivers |
| 570 | is selected. |
| 571 | |
| 572 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 573 | config HVC_CONSOLE |
| 574 | bool "pSeries Hypervisor Virtual Console support" |
| 575 | depends on PPC_PSERIES |
Ryan S. Arnold | 45d607e | 2006-03-27 21:25:16 +0200 | [diff] [blame] | 576 | select HVC_DRIVER |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 577 | help |
| 578 | pSeries machines when partitioned support a hypervisor virtual |
| 579 | console. This driver allows each pSeries partition to have a console |
| 580 | which is accessed via the HMC. |
| 581 | |
Arnd Bergmann | f4d1749 | 2006-03-27 21:26:03 +0200 | [diff] [blame] | 582 | config HVC_RTAS |
| 583 | bool "IBM RTAS Console support" |
| 584 | depends on PPC_RTAS |
| 585 | select HVC_DRIVER |
| 586 | help |
| 587 | IBM Console device driver which makes use of RTAS |
| 588 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 589 | config HVCS |
| 590 | tristate "IBM Hypervisor Virtual Console Server support" |
| 591 | depends on PPC_PSERIES |
| 592 | help |
| 593 | Partitionable IBM Power5 ppc64 machines allow hosting of |
| 594 | firmware virtual consoles from one Linux partition by |
| 595 | another Linux partition. This driver allows console data |
| 596 | from Linux partitions to be accessed through TTY device |
| 597 | interfaces in the device tree of a Linux partition running |
| 598 | this driver. |
| 599 | |
| 600 | To compile this driver as a module, choose M here: the |
| 601 | module will be called hvcs.ko. Additionally, this module |
| 602 | will depend on arch specific APIs exported from hvcserver.ko |
| 603 | which will also be compiled when this driver is built as a |
| 604 | module. |
| 605 | |
| 606 | source "drivers/char/ipmi/Kconfig" |
| 607 | |
| 608 | source "drivers/char/watchdog/Kconfig" |
| 609 | |
| 610 | config DS1620 |
| 611 | tristate "NetWinder thermometer support" |
| 612 | depends on ARCH_NETWINDER |
| 613 | help |
| 614 | Say Y here to include support for the thermal management hardware |
| 615 | found in the NetWinder. This driver allows the user to control the |
| 616 | temperature set points and to read the current temperature. |
| 617 | |
| 618 | It is also possible to say M here to build it as a module (ds1620) |
| 619 | It is recommended to be used on a NetWinder, but it is not a |
| 620 | necessity. |
| 621 | |
| 622 | config NWBUTTON |
| 623 | tristate "NetWinder Button" |
| 624 | depends on ARCH_NETWINDER |
| 625 | ---help--- |
| 626 | If you say Y here and create a character device node /dev/nwbutton |
| 627 | with major and minor numbers 10 and 158 ("man mknod"), then every |
| 628 | time the orange button is pressed a number of times, the number of |
| 629 | times the button was pressed will be written to that device. |
| 630 | |
| 631 | This is most useful for applications, as yet unwritten, which |
| 632 | perform actions based on how many times the button is pressed in a |
| 633 | row. |
| 634 | |
| 635 | Do not hold the button down for too long, as the driver does not |
| 636 | alter the behaviour of the hardware reset circuitry attached to the |
| 637 | button; it will still execute a hard reset if the button is held |
| 638 | down for longer than approximately five seconds. |
| 639 | |
| 640 | To compile this driver as a module, choose M here: the |
| 641 | module will be called nwbutton. |
| 642 | |
| 643 | Most people will answer Y to this question and "Reboot Using Button" |
| 644 | below to be able to initiate a system shutdown from the button. |
| 645 | |
| 646 | config NWBUTTON_REBOOT |
| 647 | bool "Reboot Using Button" |
| 648 | depends on NWBUTTON |
| 649 | help |
| 650 | If you say Y here, then you will be able to initiate a system |
| 651 | shutdown and reboot by pressing the orange button a number of times. |
| 652 | The number of presses to initiate the shutdown is two by default, |
| 653 | but this can be altered by modifying the value of NUM_PRESSES_REBOOT |
| 654 | in nwbutton.h and recompiling the driver or, if you compile the |
| 655 | driver as a module, you can specify the number of presses at load |
| 656 | time with "insmod button reboot_count=<something>". |
| 657 | |
| 658 | config NWFLASH |
| 659 | tristate "NetWinder flash support" |
| 660 | depends on ARCH_NETWINDER |
| 661 | ---help--- |
| 662 | If you say Y here and create a character device /dev/flash with |
| 663 | major 10 and minor 160 you can manipulate the flash ROM containing |
| 664 | the NetWinder firmware. Be careful as accidentally overwriting the |
| 665 | flash contents can render your computer unbootable. On no account |
| 666 | allow random users access to this device. :-) |
| 667 | |
| 668 | To compile this driver as a module, choose M here: the |
| 669 | module will be called nwflash. |
| 670 | |
| 671 | If you're not sure, say N. |
| 672 | |
| 673 | config HW_RANDOM |
| 674 | tristate "Intel/AMD/VIA HW Random Number Generator support" |
| 675 | depends on (X86 || IA64) && PCI |
| 676 | ---help--- |
| 677 | This driver provides kernel-side support for the Random Number |
| 678 | Generator hardware found on Intel i8xx-based motherboards, |
| 679 | AMD 76x-based motherboards, and Via Nehemiah CPUs. |
| 680 | |
| 681 | Provides a character driver, used to read() entropy data. |
| 682 | |
| 683 | To compile this driver as a module, choose M here: the |
| 684 | module will be called hw_random. |
| 685 | |
| 686 | If unsure, say N. |
| 687 | |
| 688 | config NVRAM |
| 689 | tristate "/dev/nvram support" |
Brian Gerst | 0d078f6 | 2005-10-30 14:59:20 -0800 | [diff] [blame] | 690 | depends on ATARI || X86 || ARM || GENERIC_NVRAM |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 691 | ---help--- |
| 692 | If you say Y here and create a character special file /dev/nvram |
| 693 | with major number 10 and minor number 144 using mknod ("man mknod"), |
| 694 | you get read and write access to the extra bytes of non-volatile |
| 695 | memory in the real time clock (RTC), which is contained in every PC |
| 696 | and most Ataris. The actual number of bytes varies, depending on the |
| 697 | nvram in the system, but is usually 114 (128-14 for the RTC). |
| 698 | |
| 699 | This memory is conventionally called "CMOS RAM" on PCs and "NVRAM" |
| 700 | on Ataris. /dev/nvram may be used to view settings there, or to |
| 701 | change them (with some utility). It could also be used to frequently |
| 702 | save a few bits of very important data that may not be lost over |
| 703 | power-off and for which writing to disk is too insecure. Note |
| 704 | however that most NVRAM space in a PC belongs to the BIOS and you |
| 705 | should NEVER idly tamper with it. See Ralf Brown's interrupt list |
| 706 | for a guide to the use of CMOS bytes by your BIOS. |
| 707 | |
| 708 | On Atari machines, /dev/nvram is always configured and does not need |
| 709 | to be selected. |
| 710 | |
| 711 | To compile this driver as a module, choose M here: the |
| 712 | module will be called nvram. |
| 713 | |
| 714 | config RTC |
| 715 | tristate "Enhanced Real Time Clock Support" |
Alessandro Zummo | 12b824f | 2006-03-27 01:16:35 -0800 | [diff] [blame] | 716 | depends on !PPC && !PARISC && !IA64 && !M68K && (!SPARC || PCI) && !FRV && !ARM |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 717 | ---help--- |
| 718 | If you say Y here and create a character special file /dev/rtc with |
| 719 | major number 10 and minor number 135 using mknod ("man mknod"), you |
| 720 | will get access to the real time clock (or hardware clock) built |
| 721 | into your computer. |
| 722 | |
| 723 | Every PC has such a clock built in. It can be used to generate |
| 724 | signals from as low as 1Hz up to 8192Hz, and can also be used |
| 725 | as a 24 hour alarm. It reports status information via the file |
| 726 | /proc/driver/rtc and its behaviour is set by various ioctls on |
| 727 | /dev/rtc. |
| 728 | |
| 729 | If you run Linux on a multiprocessor machine and said Y to |
| 730 | "Symmetric Multi Processing" above, you should say Y here to read |
| 731 | and set the RTC in an SMP compatible fashion. |
| 732 | |
| 733 | If you think you have a use for such a device (such as periodic data |
| 734 | sampling), then say Y here, and read <file:Documentation/rtc.txt> |
| 735 | for details. |
| 736 | |
| 737 | To compile this driver as a module, choose M here: the |
| 738 | module will be called rtc. |
| 739 | |
| 740 | config SGI_DS1286 |
| 741 | tristate "SGI DS1286 RTC support" |
| 742 | depends on SGI_IP22 |
| 743 | help |
| 744 | If you say Y here and create a character special file /dev/rtc with |
| 745 | major number 10 and minor number 135 using mknod ("man mknod"), you |
| 746 | will get access to the real time clock built into your computer. |
| 747 | Every SGI has such a clock built in. It reports status information |
| 748 | via the file /proc/rtc and its behaviour is set by various ioctls on |
| 749 | /dev/rtc. |
| 750 | |
| 751 | config SGI_IP27_RTC |
| 752 | bool "SGI M48T35 RTC support" |
| 753 | depends on SGI_IP27 |
| 754 | help |
| 755 | If you say Y here and create a character special file /dev/rtc with |
| 756 | major number 10 and minor number 135 using mknod ("man mknod"), you |
| 757 | will get access to the real time clock built into your computer. |
| 758 | Every SGI has such a clock built in. It reports status information |
| 759 | via the file /proc/rtc and its behaviour is set by various ioctls on |
| 760 | /dev/rtc. |
| 761 | |
| 762 | config GEN_RTC |
| 763 | tristate "Generic /dev/rtc emulation" |
David Howells | 2919b51 | 2006-01-08 01:01:16 -0800 | [diff] [blame] | 764 | depends on RTC!=y && !IA64 && !ARM && !M32R && !SPARC && !FRV |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 765 | ---help--- |
| 766 | If you say Y here and create a character special file /dev/rtc with |
| 767 | major number 10 and minor number 135 using mknod ("man mknod"), you |
| 768 | will get access to the real time clock (or hardware clock) built |
| 769 | into your computer. |
| 770 | |
| 771 | It reports status information via the file /proc/driver/rtc and its |
| 772 | behaviour is set by various ioctls on /dev/rtc. If you enable the |
| 773 | "extended RTC operation" below it will also provide an emulation |
| 774 | for RTC_UIE which is required by some programs and may improve |
| 775 | precision in some cases. |
| 776 | |
| 777 | To compile this driver as a module, choose M here: the |
| 778 | module will be called genrtc. |
| 779 | |
| 780 | config GEN_RTC_X |
| 781 | bool "Extended RTC operation" |
| 782 | depends on GEN_RTC |
| 783 | help |
| 784 | Provides an emulation for RTC_UIE which is required by some programs |
| 785 | and may improve precision of the generic RTC support in some cases. |
| 786 | |
| 787 | config EFI_RTC |
| 788 | bool "EFI Real Time Clock Services" |
| 789 | depends on IA64 |
| 790 | |
| 791 | config DS1302 |
| 792 | tristate "DS1302 RTC support" |
| 793 | depends on M32R && (PLAT_M32700UT || PLAT_OPSPUT) |
| 794 | help |
| 795 | If you say Y here and create a character special file /dev/rtc with |
| 796 | major number 121 and minor number 0 using mknod ("man mknod"), you |
| 797 | will get access to the real time clock (or hardware clock) built |
| 798 | into your computer. |
| 799 | |
| 800 | config S3C2410_RTC |
| 801 | bool "S3C2410 RTC Driver" |
| 802 | depends on ARCH_S3C2410 |
| 803 | help |
| 804 | RTC (Realtime Clock) driver for the clock inbuilt into the |
| 805 | Samsung S3C2410. This can provide periodic interrupt rates |
| 806 | from 1Hz to 64Hz for user programs, and wakeup from Alarm. |
| 807 | |
| 808 | config RTC_VR41XX |
| 809 | tristate "NEC VR4100 series Real Time Clock Support" |
| 810 | depends on CPU_VR41XX |
| 811 | |
| 812 | config COBALT_LCD |
| 813 | bool "Support for Cobalt LCD" |
| 814 | depends on MIPS_COBALT |
| 815 | help |
| 816 | This option enables support for the LCD display and buttons found |
| 817 | on Cobalt systems through a misc device. |
| 818 | |
| 819 | config DTLK |
| 820 | tristate "Double Talk PC internal speech card support" |
| 821 | help |
| 822 | This driver is for the DoubleTalk PC, a speech synthesizer |
| 823 | manufactured by RC Systems (<http://www.rcsys.com/>). It is also |
| 824 | called the `internal DoubleTalk'. |
| 825 | |
| 826 | To compile this driver as a module, choose M here: the |
| 827 | module will be called dtlk. |
| 828 | |
| 829 | config R3964 |
| 830 | tristate "Siemens R3964 line discipline" |
| 831 | ---help--- |
| 832 | This driver allows synchronous communication with devices using the |
| 833 | Siemens R3964 packet protocol. Unless you are dealing with special |
| 834 | hardware like PLCs, you are unlikely to need this. |
| 835 | |
| 836 | To compile this driver as a module, choose M here: the |
| 837 | module will be called n_r3964. |
| 838 | |
| 839 | If unsure, say N. |
| 840 | |
| 841 | config APPLICOM |
| 842 | tristate "Applicom intelligent fieldbus card support" |
| 843 | depends on PCI |
| 844 | ---help--- |
| 845 | This driver provides the kernel-side support for the intelligent |
| 846 | fieldbus cards made by Applicom International. More information |
| 847 | about these cards can be found on the WWW at the address |
| 848 | <http://www.applicom-int.com/>, or by email from David Woodhouse |
| 849 | <dwmw2@infradead.org>. |
| 850 | |
| 851 | To compile this driver as a module, choose M here: the |
| 852 | module will be called applicom. |
| 853 | |
| 854 | If unsure, say N. |
| 855 | |
| 856 | config SONYPI |
| 857 | tristate "Sony Vaio Programmable I/O Control Device support (EXPERIMENTAL)" |
| 858 | depends on EXPERIMENTAL && X86 && PCI && INPUT && !64BIT |
| 859 | ---help--- |
| 860 | This driver enables access to the Sony Programmable I/O Control |
| 861 | Device which can be found in many (all ?) Sony Vaio laptops. |
| 862 | |
| 863 | If you have one of those laptops, read |
| 864 | <file:Documentation/sonypi.txt>, and say Y or M here. |
| 865 | |
| 866 | To compile this driver as a module, choose M here: the |
| 867 | module will be called sonypi. |
| 868 | |
| 869 | config TANBAC_TB0219 |
| 870 | tristate "TANBAC TB0219 base board support" |
Yoichi Yuasa | 63b799f | 2005-09-03 15:56:13 -0700 | [diff] [blame] | 871 | depends TANBAC_TB022X |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 872 | |
| 873 | menu "Ftape, the floppy tape device driver" |
| 874 | |
| 875 | config FTAPE |
| 876 | tristate "Ftape (QIC-80/Travan) support" |
| 877 | depends on BROKEN_ON_SMP && (ALPHA || X86) |
| 878 | ---help--- |
| 879 | If you have a tape drive that is connected to your floppy |
| 880 | controller, say Y here. |
| 881 | |
| 882 | Some tape drives (like the Seagate "Tape Store 3200" or the Iomega |
| 883 | "Ditto 3200" or the Exabyte "Eagle TR-3") come with a "high speed" |
| 884 | controller of their own. These drives (and their companion |
| 885 | controllers) are also supported if you say Y here. |
| 886 | |
| 887 | If you have a special controller (such as the CMS FC-10, FC-20, |
| 888 | Mountain Mach-II, or any controller that is based on the Intel 82078 |
| 889 | FDC like the high speed controllers by Seagate and Exabyte and |
| 890 | Iomega's "Ditto Dash") you must configure it by selecting the |
| 891 | appropriate entries from the "Floppy tape controllers" sub-menu |
| 892 | below and possibly modify the default values for the IRQ and DMA |
| 893 | channel and the IO base in ftape's configuration menu. |
| 894 | |
| 895 | If you want to use your floppy tape drive on a PCI-bus based system, |
| 896 | please read the file <file:drivers/char/ftape/README.PCI>. |
| 897 | |
| 898 | The ftape kernel driver is also available as a runtime loadable |
| 899 | module. To compile this driver as a module, choose M here: the |
| 900 | module will be called ftape. |
| 901 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 902 | source "drivers/char/ftape/Kconfig" |
| 903 | |
| 904 | endmenu |
| 905 | |
| 906 | source "drivers/char/agp/Kconfig" |
| 907 | |
| 908 | source "drivers/char/drm/Kconfig" |
| 909 | |
| 910 | source "drivers/char/pcmcia/Kconfig" |
| 911 | |
| 912 | config MWAVE |
| 913 | tristate "ACP Modem (Mwave) support" |
| 914 | depends on X86 |
| 915 | select SERIAL_8250 |
| 916 | ---help--- |
| 917 | The ACP modem (Mwave) for Linux is a WinModem. It is composed of a |
| 918 | kernel driver and a user level application. Together these components |
| 919 | support direct attachment to public switched telephone networks (PSTNs) |
| 920 | and support selected world wide countries. |
| 921 | |
| 922 | This version of the ACP Modem driver supports the IBM Thinkpad 600E, |
| 923 | 600, and 770 that include on board ACP modem hardware. |
| 924 | |
| 925 | The modem also supports the standard communications port interface |
| 926 | (ttySx) and is compatible with the Hayes AT Command Set. |
| 927 | |
| 928 | The user level application needed to use this driver can be found at |
| 929 | the IBM Linux Technology Center (LTC) web site: |
| 930 | <http://www.ibm.com/linux/ltc/>. |
| 931 | |
| 932 | If you own one of the above IBM Thinkpads which has the Mwave chipset |
| 933 | in it, say Y. |
| 934 | |
| 935 | To compile this driver as a module, choose M here: the |
| 936 | module will be called mwave. |
| 937 | |
| 938 | config SCx200_GPIO |
| 939 | tristate "NatSemi SCx200 GPIO Support" |
| 940 | depends on SCx200 |
| 941 | help |
| 942 | Give userspace access to the GPIO pins on the National |
| 943 | Semiconductor SCx200 processors. |
| 944 | |
| 945 | If compiled as a module, it will be called scx200_gpio. |
| 946 | |
Ben Gardner | e329113 | 2006-01-09 20:51:29 -0800 | [diff] [blame] | 947 | config CS5535_GPIO |
| 948 | tristate "AMD CS5535/CS5536 GPIO (Geode Companion Device)" |
| 949 | depends on X86_32 |
| 950 | help |
| 951 | Give userspace access to the GPIO pins on the AMD CS5535 and |
| 952 | CS5536 Geode companion devices. |
| 953 | |
| 954 | If compiled as a module, it will be called cs5535_gpio. |
| 955 | |
Yoichi Yuasa | e400bae | 2005-06-21 17:15:56 -0700 | [diff] [blame] | 956 | config GPIO_VR41XX |
| 957 | tristate "NEC VR4100 series General-purpose I/O Unit support" |
| 958 | depends on CPU_VR41XX |
| 959 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 960 | config RAW_DRIVER |
| 961 | tristate "RAW driver (/dev/raw/rawN) (OBSOLETE)" |
| 962 | help |
| 963 | The raw driver permits block devices to be bound to /dev/raw/rawN. |
| 964 | Once bound, I/O against /dev/raw/rawN uses efficient zero-copy I/O. |
| 965 | See the raw(8) manpage for more details. |
| 966 | |
Adrian Bunk | 98e7f29 | 2005-06-25 14:59:37 -0700 | [diff] [blame] | 967 | The raw driver is deprecated and will be removed soon. |
| 968 | Applications should simply open the device (eg /dev/hda1) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 969 | with the O_DIRECT flag. |
| 970 | |
Andrew Morton | 0de502a | 2005-12-12 00:37:41 -0800 | [diff] [blame] | 971 | config MAX_RAW_DEVS |
| 972 | int "Maximum number of RAW devices to support (1-8192)" |
| 973 | depends on RAW_DRIVER |
| 974 | default "256" |
| 975 | help |
| 976 | The maximum number of RAW devices that are supported. |
| 977 | Default is 256. Increase this number in case you need lots of |
| 978 | raw devices. |
| 979 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 980 | config HPET |
| 981 | bool "HPET - High Precision Event Timer" if (X86 || IA64) |
| 982 | default n |
| 983 | depends on ACPI |
| 984 | help |
| 985 | If you say Y here, you will have a miscdevice named "/dev/hpet/". Each |
| 986 | open selects one of the timers supported by the HPET. The timers are |
| 987 | non-periodioc and/or periodic. |
| 988 | |
| 989 | config HPET_RTC_IRQ |
| 990 | bool "HPET Control RTC IRQ" if !HPET_EMULATE_RTC |
| 991 | default n |
| 992 | depends on HPET |
| 993 | help |
| 994 | If you say Y here, you will disable RTC_IRQ in drivers/char/rtc.c. It |
| 995 | is assumed the platform called hpet_alloc with the RTC IRQ values for |
| 996 | the HPET timers. |
| 997 | |
| 998 | config HPET_MMAP |
| 999 | bool "Allow mmap of HPET" |
| 1000 | default y |
| 1001 | depends on HPET |
| 1002 | help |
| 1003 | If you say Y here, user applications will be able to mmap |
| 1004 | the HPET registers. |
| 1005 | |
| 1006 | In some hardware implementations, the page containing HPET |
| 1007 | registers may also contain other things that shouldn't be |
| 1008 | exposed to the user. If this applies to your hardware, |
| 1009 | say N here. |
| 1010 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1011 | config HANGCHECK_TIMER |
| 1012 | tristate "Hangcheck timer" |
Jan Glauber | 3633b04 | 2006-02-01 03:06:34 -0800 | [diff] [blame] | 1013 | depends on X86 || IA64 || PPC64 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1014 | help |
| 1015 | The hangcheck-timer module detects when the system has gone |
| 1016 | out to lunch past a certain margin. It can reboot the system |
| 1017 | or merely print a warning. |
| 1018 | |
| 1019 | config MMTIMER |
| 1020 | tristate "MMTIMER Memory mapped RTC for SGI Altix" |
| 1021 | depends on IA64_GENERIC || IA64_SGI_SN2 |
| 1022 | default y |
| 1023 | help |
| 1024 | The mmtimer device allows direct userspace access to the |
| 1025 | Altix system timer. |
| 1026 | |
| 1027 | source "drivers/char/tpm/Kconfig" |
| 1028 | |
Mark Gross | 1a80ba8 | 2005-10-30 15:02:55 -0800 | [diff] [blame] | 1029 | config TELCLOCK |
| 1030 | tristate "Telecom clock driver for MPBL0010 ATCA SBC" |
| 1031 | depends on EXPERIMENTAL |
| 1032 | default n |
| 1033 | help |
| 1034 | The telecom clock device is specific to the MPBL0010 ATCA computer and |
| 1035 | allows direct userspace access to the configuration of the telecom clock |
| 1036 | configuration settings. This device is used for hardware synchronization |
| 1037 | across the ATCA backplane fabric. Upon loading, the driver exports a |
| 1038 | sysfs directory, /sys/devices/platform/telco_clock, with a number of |
| 1039 | files for controlling the behavior of this hardware. |
| 1040 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1041 | endmenu |
| 1042 | |