[mythtv-users] Udev

Bill Meek keemllib at gmail.com
Wed Nov 28 20:46:34 UTC 2018


On 11/28/18 2:16 PM, Daryl McDonald wrote:
>>
>> Yes:  udevadm info -a -p $(udevadm info -q path -n /dev/dvb/adapter0/dvr0)
>>
> Further testing, running the above command with only one tuner installed at
> a time shows unique info for the two HP cards and identical info for the
> two PC800i cards. Would it be functional to have three Udev rules and allow
> the second PC800i card to be labelled  what-ever?

I *think* you'd be happy with a single rule. The question mark on the KERNEL line
gets both of my tuners.

Here's my rule for a single HVR-2200 card that has two tuners on it. Both record
ATSC (not on different sources.) There's no unique information about the tuners.

SUBSYSTEM=="dvb", \
     KERNEL=="dvb?.frontend0", \
     ATTRS{subsystem_vendor}=="0x0070", \
     ATTRS{subsystem_device}=="0x8851", \
     SYMLINK+="dvb/hvr-2200-$minor", \
     TAG+="systemd"

#Creates:
# lrwxrwxrwx 1 root root 18 Dec 27 23:27 /dev/dvb/hvr-2200-0 -> adapter0/frontend0
# lrwxrwxrwx 1 root root 18 Dec 27 23:27 /dev/dvb/hvr-2200-4 -> adapter1/frontend0

   looking at device '/devices/pci0000:00/0000:00:1c.4/0000:04:00.0/dvb/dvb0.frontend0':
     KERNEL=="dvb0.frontend0"
     SUBSYSTEM=="dvb"
     DRIVER==""

   looking at device '/devices/pci0000:00/0000:00:1c.4/0000:04:00.0/dvb/dvb1.frontend0':
     KERNEL=="dvb1.frontend0"
     SUBSYSTEM=="dvb"
     DRIVER==""
-- 
Bill


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