On Sun, Jul 17, 2011 at 4:37 AM, Daniel Mack wrote:
> Interface 3 is the MIDI streaming interface, and
> snd_usb_create_mixer() shouldn't find any controls there. I assume
> there is a confusion in the usage of mixer->chip_ctrl_if, and the code
> there also seems wrong. Can you test whether the at
On Wed, Jul 13, 2011 at 5:27 AM, Daniel Mack wrote:
> Can you check the value of the "ctrlif" argument in snd_usb_create_mixer()?
Two instances: ctrlif = 0, ctrlif = 3. Here's the relevant kernel
log snippet:
[ 428.011513] ALSA sound/usb/endpoint.c:434: 3:1:1: add audio endpoint 0x1
[ 428.4
the length checks is redundant, as is the !csize check), but
I'm not well versed in the local style and didn't want to break
anything. =)
nicolai
From 83bcd097550a4494c6b3f362ebbc432249acde59 Mon Sep 17 00:00:00 2001
From: Nicolai Krakowiak
Date: Fri, 15 Jul 2011 23:05:10 -0700
Subje
On Tue, Jul 12, 2011 at 5:22 PM, Daniel Mack wrote:
> On Tue, Jul 12, 2011 at 12:39 PM, Nicolai Krakowiak
> wrote:
>> On Mon, Jul 11, 2011 at 3:22 AM, Daniel Mack wrote:
>> I got as far as sound/usb/card.c:514 calling snd_usb_create_mixer().
>> It looks like it is hitti
On Tue, Jul 12, 2011 at 3:48 AM, Daniel Mack wrote:
> As you seem to known what you're doing, can you try to disable the
> mixer creation entirely? Just bail out very early in
> snd_usb_create_mixer() or don't call it at all in the first place. The
> audio should stream without any mixer functions
On Mon, Jul 11, 2011 at 3:22 AM, Daniel Mack wrote:
> Ok, that is also what your lsusb dump shows - the FORMAT_TYPE
> descriptor has a length of 10, even though a FORMAT_TYPE_I descriptor
> must be 6 bytes longs, according to the UAC specification. I can't see
> a reason why it is 10 bytes longs,
On Sat, Jul 9, 2011 at 2:25 AM, Daniel Mack wrote:
> Can you apply the attached patch and send us a the kernel log messages again?
After power cycling the device after boot:
[ 191.372814] 10:1:1 : invalid UAC_FORMAT_TYPE desc (protocol 32, bLength 10)
[ 191.372935] 10:2:1 : invalid UAC_FORMAT_
On Fri, Jul 8, 2011 at 2:27 AM, Daniel Mack wrote:
> Can I ask you to download the newest
> versions of the usbutils source code and try it out? You can find them
> here: http://git.kernel.org/?p=linux/kernel/git/gregkh/usbutils.git;a=summary
Done and attached.
> Also, support for this protocol
On Wed, Jul 6, 2011 at 6:08 AM, Graham Dicker wrote:
> Try making the Focusrite the primary device. This worked for me under
> somewhat similar circumstances.
>
> Graham Dicker
Thanks for the suggestion, Graham. I tried this last night without
success unfortunately.
nicolai
--
Hi folks,
I have an unsupported USB device (Focusrite Scarlett 18i6), and I was
curious what steps are necessary to get it to work under Linux.
The internal sound card on this machine works well (hw:0). After
loading snd_usb_audio, the 18i6 shows up as expected as device 1:
% cat /proc/asound/c
10 matches
Mail list logo
