Gentoo Forums
Gentoo Forums
Gentoo Forums
Quick Search: in
Cannot get freq at ep 0x82
View unanswered posts
View posts from last 24 hours

 
Reply to topic    Gentoo Forums Forum Index Kernel & Hardware
View previous topic :: View next topic  
Author Message
natrix
Guru
Guru


Joined: 23 Aug 2013
Posts: 532

PostPosted: Wed Oct 29, 2014 11:13 pm    Post subject: Cannot get freq at ep 0x82 Reply with quote

Hello forum:

I have this problem: When I connect my webcam, the journalctl show de next error (in red colour):

Code:
oct 29 20:05:49 natrix kernel: usb 1-7: 3:1: cannot get freq at ep 0x82
oct 29 20:05:49 natrix kernel: usb 1-7: Warning! Unlikely big volume range (=11903), cval->res is probably wrong.
oct 29 20:05:49 natrix kernel: usb 1-7: [2] FU [Mic Capture Volume] ch = 2, val = 384/12287/1
oct 29 20:05:49 natrix kernel: usb 1-7: 3:1: cannot get freq at ep 0x82
oct 29 20:05:49 natrix kernel: usb 1-7: 3:1: cannot get freq at ep 0x82
oct 29 20:05:49 natrix kernel: usb 1-7: 3:1: cannot get freq at ep 0x82
oct 29 20:05:49 natrix kernel: usb 1-7: 3:1: cannot get freq at ep 0x82


Googling I read that it is a problem with the sound driver, but I didn't found a solution.

What is this error? How can I fix it?
Thank :)
Back to top
View user's profile Send private message
Roman_Gruber
Advocate
Advocate


Joined: 03 Oct 2006
Posts: 3806
Location: Austro Bavaria

PostPosted: Thu Oct 30, 2014 8:05 am    Post subject: Reply with quote

well your topic title is very very bad.

you may change it to something more obvious like: usb webcam posts error

and as of webcams, tehy are hardly supported, sometimes work and sometimes not. there are too many available without docs from the manufactuerer to get it to work at all.
Back to top
View user's profile Send private message
Ant P.
Watchman
Watchman


Joined: 18 Apr 2009
Posts: 5761

PostPosted: Fri Oct 31, 2014 2:29 am    Post subject: Reply with quote

There's a comment next to that error in the source, "/* some devices don't support reading */". And the function doesn't even return an error code in that case, so it's not necessarily wrong.

You neglected to mention something important: are you actually having a problem when using the webcam? Just because some software highlights log noise in a misleading scary colour doesn't mean the source of the message needs fixing.
Back to top
View user's profile Send private message
natrix
Guru
Guru


Joined: 23 Aug 2013
Posts: 532

PostPosted: Wed Nov 05, 2014 6:39 pm    Post subject: Reply with quote

tw04l124: I'll remember your advice in my next post.

Ant P.: I found this error when guvcview stopped working. But check the webcam with kopete and works well.

Thank you
Back to top
View user's profile Send private message
Display posts from previous:   
Reply to topic    Gentoo Forums Forum Index Kernel & Hardware All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum