| Kernel driver x1205 |
| =================== |
| |
| Supported chips: |
| * Xicor X1205 RTC |
| Prefix: 'x1205' |
| Addresses scanned: none |
| Datasheet: http://www.intersil.com/cda/deviceinfo/0,1477,X1205,00.html |
| |
| Authors: |
| Karen Spearel <kas11@tampabay.rr.com>, |
| Alessandro Zummo <a.zummo@towertech.it> |
| |
| Description |
| ----------- |
| |
| This module aims to provide complete access to the Xicor X1205 RTC. |
| Recently Xicor has merged with Intersil, but the chip is |
| still sold under the Xicor brand. |
| |
| This chip is located at address 0x6f and uses a 2-byte register addressing. |
| Two bytes need to be written to read a single register, while most |
| other chips just require one and take the second one as the data |
| to be written. To prevent corrupting unknown chips, the user must |
| explicitely set the probe parameter. |
| |
| example: |
| |
| modprobe x1205 probe=0,0x6f |
| |
| The module supports one more option, hctosys, which is used to set the |
| software clock from the x1205. On systems where the x1205 is the |
| only hardware rtc, this parameter could be used to achieve a correct |
| date/time earlier in the system boot sequence. |
| |
| example: |
| |
| modprobe x1205 probe=0,0x6f hctosys=1 |