[mythtv-users] HD-3000 and DVD device Permissions

[Brian Wood]

On Feb 14, 2006, at 2:28 PM, Steven Adeff wrote:

> On 2/14/06, Brian Wood <beww at beww.org> wrote:
>>
>> On Feb 14, 2006, at 1:36 PM, Steven Adeff wrote:
>>
>>> On 2/14/06, Brian Wood <beww at beww.org> wrote:
>>>> A couple of presumably udev-related problems:
>>>>
>>>> The permissions on my /dev/dvb/adapter0 devices always come up  as
>>>> root:root and 660. I changed them in /etc/udev/permissions.d/10-
>>>> pchdtv.permissions but the system ignores the change, or perhaps  
>>>> does
>>>> change them but then changes them back?
>>>
>>> you try adding
>>> SUBSYSTEM=="dvb",       GROUP="video"
>>> to /etc/udev/permissions.rules?
>>> then just add the video group to your mythtv user. this is how it
>>> works in my Debian system.
>>
>> Well those parameters are in my /etc/udev/rules.d./50-udev.rules
>>
>> But they seem to be getting ignored.
>
> sounds like something is overriding these settings then, maybe a rule
> that runs later in your /etc/udev directory?

Well I just edited my /etc/udev/rules.d/10-pchdtv.rules file to make  
the devices "video" group and that seems to have worked.

I don't know why there would be a separate permissions directory and  
files, when you can do that with the rules. I'll have to look at what  
the pcHDTV Makefile did to things but that's now on the "maybe  
sometime" list because things are working.

>
>>>> Is there some other place I should be changing the permissions that
>>>> get assigned to the devices? I can change them easily enough after
>>>> the fact but, as I said, it bugs me :-)
>>>>
>>>> A somewhat related matter, it is a 50/50 proposition as to which of
>>>> my DVD drives is going to come up as /dev/dvd, the other being / 
>>>> dev/
>>>> dvd1 (hdc and hdd really). I'm guessing it has to do with which  
>>>> drive
>>>> happens to finish its initialization first, but it would be nice to
>>>> have this be consistent :-)
>>>
>>> just reference the actual device and ignore /dev/dvd, though I've
>>> never seen them come up randomly like you describe.
>>>
>>
>> I can't remember if it is the hdc/hdd that get reversed or just the
>> symlinks. I try not to reboot this box so I'll have to wait 'till the
>> next time they get reversed. .
>
> hdc and hdd should not get reversed since they are based on the order
> your ide devices are plugged int (hda = Channel 1 Master, hdb =
> Channel 1 Slave, hdc = Channel 2 Master, hdd = Channel 2 Slave, etc)

Granted, that should be hardwired, and the switch was almost  
certainly with the symllinks, but I didn't actually check it and I  
have seem stranger things happen with VIA chipsets :-)

Again, on the "sometime" list, as it's not a major problem. I got the  
second DVD drive because I needed one that could handle DVD-RAM, I  
suppose I should pull the original out anyway.

Much thanks for you time.
>