[mythtv-users] Upgraded to Fedora 22 and lirc is misbehaving

[Hika van den Hoven]

Hoi Jerry,

Wednesday, May 27, 2015, 1:46:57 PM, you wrote:

> On Tue, May 26, 2015 at 9:48 PM, Hika van den Hoven <hikavdh at gmail.com>
> wrote:

> <big snip>

> A few things. First about the rule. A single '=' means assign and a
>> double compare. So the rule should be:
>>
>> KERNEL=="lirc0", NAME=="lirc0", GROUP="lirc", MODE="0660"
>>
>> in stead of
>>
>> KERNEL=="lirc0", NAME=="lirc0", GROUP="lirc", MODE=="0660"
>>
>> Since the mode isn't 0660 it compares false and fails.
>>
>> Have you double checked that the group for user lirc is indeed lirc?
>>
>> Try to set the owner too. Also if I check, I only see KERNEL and
>> SUBSYSTEM and to be save change KERNEL to 'lirc*'. You can add a
>> DRIVERS part (e.g. DRIVERS=="lirc_serial" or whatever your driver is.
>> Check with: udevadm info --attribute-walk --name /dev/lirc0)
>>
>> KERNEL=="lirc*", SUBSYSTEM=="lirc", OWNER="lirc", GROUP="lirc", MODE="0660"
>>

> Hi Hika,

> Okay, I changed the rule to the last one above, and it worked well,
> changing the permissions and ownership of /dev/lirc0.  The remote control
> only works when I set the MODE to 0666.  I don't know who is trying to
> access the device!  Maybe it is okay as 0666?

> [root at htpc ~]# groups lirc
> lirc : lirc

> Right now, I have the rule as

> KERNEL=="lirc0", SUBSYSTEM=="lirc", MODE="0666"

> just to shorten it.  I had the GROUP and OWNER as lirc and the remote
> control didn't work with MODE at 0660.  Strange.

> Here is the result of the udevadm command:

> looking at device
> '/devices/pci0000:00/0000:00:1d.1/usb7/7-2/7-2:1.0/rc/rc0/lirc0':
>     KERNEL=="lirc0"
>     SUBSYSTEM=="lirc"
>     DRIVER==""

>   looking at parent device
> '/devices/pci0000:00/0000:00:1d.1/usb7/7-2/7-2:1.0/rc/rc0':
>     KERNELS=="rc0"
>     SUBSYSTEMS=="rc"
>     DRIVERS==""
>     ATTRS{protocols}=="other unknown rc-5 nec rc-6 jvc sony rc-5-sz sanyo
> sharp mce_kbd [lirc] xmp"

>   looking at parent device
> '/devices/pci0000:00/0000:00:1d.1/usb7/7-2/7-2:1.0':
>     KERNELS=="7-2:1.0"
>     SUBSYSTEMS=="usb"

>     DRIVERS=="mceusb"
So you could add this line to make it more specific. Just in case you
at any time have more lirc devices. You then also can give it a more
clear name: e.g. SYMLINK+="lircMCE"

>     ATTRS{bInterfaceClass}=="ff"
>     ATTRS{bInterfaceSubClass}=="ff"
>     ATTRS{bInterfaceProtocol}=="ff"
>     ATTRS{bNumEndpoints}=="02"
>     ATTRS{supports_autosuspend}=="0"
>     ATTRS{bAlternateSetting}==" 0"
>     ATTRS{bInterfaceNumber}=="00"


> Thanks for your help!
> Jerry




Tot mails,
  Hika                            mailto:hikavdh at gmail.com

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