[mythtv-users] Help understanding udev rules

[George Nassas]

On 2013-04-10, at 5:15 AM, Mike Perkins wrote:

> Have you tried:
> 
> jt at myth:/dev/v4l$ udevadm info -a -p $(udevadm info -q path -n /dev/v4l/hdpvr1)
> 
> That might tell you if the symlink you created is doing the right thing.


Even more helpful is:

    udevadm test $(udevadm info -q path -n /dev/v4l/hdpvr1)

In the spew of output look at the "DEVLINKS=" line for what links are being created. You can quickly iterate through various attributes in your rules and see what effect each has.

The other helpful one is "trigger" which actually executes the rules for a given device, no rebooting required.

- George
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