| The DVB subsystem currently registers to the sysfs subsystem using the |
| "class_simple" interface. |
| |
| This means that only the basic informations like module loading parameters |
| are presented through sysfs. Other things that might be interesting are |
| currently *not* available. |
| |
| Nevertheless it's now possible to add proper udev rules so that the |
| DVB device nodes are created automatically. |
| |
| We assume that you have udev already up and running and that have been |
| creating the DVB device nodes manually up to now due to the missing sysfs |
| support. |
| |
| 0. Don't forget to disable your current method of creating the |
| device nodes manually. |
| |
| 1. Unfortunately, you'll need a helper script to transform the kernel |
| sysfs device name into the well known dvb adapter / device naming scheme. |
| The script should be called "dvb.sh" and should be placed into a script |
| dir where udev can execute it, most likely /etc/udev/scripts/ |
| |
| So, create a new file /etc/udev/scripts/dvb.sh and add the following: |
| ------------------------------schnipp------------------------------------------------ |
| #!/bin/sh |
| /bin/echo $1 | /bin/sed -e 's,dvb\([0-9]\)\.\([^0-9]*\)\([0-9]\),dvb/adapter\1/\2\3,' |
| ------------------------------schnipp------------------------------------------------ |
| |
| Don't forget to make the script executable with "chmod". |
| |
| 1. You need to create a proper udev rule that will create the device nodes |
| like you know them. All real distributions out there scan the /etc/udev/rules.d |
| directory for rule files. The main udev configuration file /etc/udev/udev.conf |
| will tell you the directory where the rules are, most likely it's /etc/udev/rules.d/ |
| |
| Create a new rule file in that directory called "dvb.rule" and add the following line: |
| ------------------------------schnipp------------------------------------------------ |
| KERNEL="dvb*", PROGRAM="/etc/udev/scripts/dvb.sh %k", NAME="%c" |
| ------------------------------schnipp------------------------------------------------ |
| |
| If you want more control over the device nodes (for example a special group membership) |
| have a look at "man udev". |
| |
| For every device that registers to the sysfs subsystem with a "dvb" prefix, |
| the helper script /etc/udev/scripts/dvb.sh is invoked, which will then |
| create the proper device node in your /dev/ directory. |