[prev in list] [next in list] [prev in thread] [next in thread] 

List:       linux-usb-users
Subject:    [Linux-usb-users] Why I can't use USB audio device when onboard audio enabled in
From:       Rocky Zhang <rocky () userful ! com>
Date:       2004-07-07 21:56:44
Message-ID: 1089237403.13490.34.camel () norma ! userful ! ca
[Download RAW message or body]

Hi,

I am frustrated about it. I have a machine (FC2)with on board audio, and
I connect 2 Labtec USB Headset to my computer.  I tested 2 different
install process:

1) Disable onboard audio in BIOS, install Fedora 2, I can see 2 USB
labtec Headset using "esd -h" commnad and can use in the audio
applications; Then before reboot, I enable onboard audio in BIOS, after
boot up, I can see all 3 audio devices now (including internal one) and
work well.

2) Enable onboard audio in BIOS, install Fedora 2, I can only see
internal audio device using "esd -h" command and can't use USB audio
devices. Here is a dmesg output:

input: USB HID v1.00 Device [Labtec Labtec USB Headset] on
usb-0000:00:03.2-2
usbaudio: device 3 audiocontrol interface 0 has 1 input and 1 output
AudioStreaming interfaces
usbaudio: valid input sample rate 44100
usbaudio: valid input sample rate 48000
usbaudio: device 3 interface 2 altsetting 1: format 0x00000010 sratelo
44100 sratehi 48000 attributes 0x01
usbaudio: valid output sample rate 44100
usbaudio: valid output sample rate 48000
usbaudio: device 3 interface 1 altsetting 1: format 0x80000010 sratelo
44100 sratehi 48000 attributes 0x01
usbaudio: registered dsp 14,3
usbaudio: constructing mixer for Terminal 6 type 0x0301
usbaudio: warning: found 1 of 2 logical channels.
usbaudio: assuming that a stereo channel connected directly to a mixer
is missing in search (got Labtec headset?). Should be fine.
usbaudio: registered mixer 14,0
usbaudio: constructing mixer for Terminal 11 type 0x0101
usbaudio: registered mixer 14,16
usb_audio_parsecontrol: usb_audio_state at 1f600688
usbcore: registered new driver audio
drivers/usb/class/audio.c: v1.0.0:USB Audio Class driver
usb 4-1.1: new full speed USB device using address 4
input: USB HID v1.00 Keyboard [Silitek IBM USB HUB KEYBOARD] on
usb-0000:00:03.2-1.1
usbcore: registered new driver snd-usb-audio
input: USB HID v1.00 Device [Silitek IBM USB HUB KEYBOARD] on
usb-0000:00:03.2-1.1
usb 4-1.3: new low speed USB device using address 5
input: USB HID v1.10 Mouse [Logitech USB-PS/2 Optical Mouse] on
usb-0000:00:03.2-1.3
usb 3-1: new full speed USB device using address 2 

usb 2-2: new full speed USB device using address 3
usbaudio: device 3 audiocontrol interface 0 has 1 input and 1 output
AudioStreaming interfaces
usbaudio: valid input sample rate 44100
usbaudio: valid input sample rate 48000
usbaudio: device 3 interface 2 altsetting 1: format 0x00000010 sratelo
44100 sratehi 48000 attributes 0x01
usbaudio: valid output sample rate 44100
usbaudio: valid output sample rate 48000
usbaudio: device 3 interface 1 altsetting 1: format 0x80000010 sratelo
44100 sratehi 48000 attributes 0x01
usbaudio: registered dsp 14,19
usbaudio: constructing mixer for Terminal 6 type 0x0301
usbaudio: warning: found 1 of 2 logical channels.
usbaudio: assuming that a stereo channel connected directly to a mixer
is missing in search (got Labtec headset?). Should be fine.
cdrom: open failed.
usbaudio: registered mixer 14,32
usbaudio: constructing mixer for Terminal 11 type 0x0101
usbaudio: registered mixer 14,48
usb_audio_parsecontrol: usb_audio_state at 1dbbc1e8
drivers/usb/input/hid-core.c: ctrl urb status -32 received
input: USB HID v1.00 Device [Labtec Labtec USB Headset] on
usb-0000:00:03.0-2
usb 2-1.1: new full speed USB device using address 4



I can see the devices in /proc/bus/usb/devices in both situations.

Any one else can help me? 


Thanks.


Rocky



-------------------------------------------------------
This SF.Net email sponsored by Black Hat Briefings & Training.
Attend Black Hat Briefings & Training, Las Vegas July 24-29 - 
digital self defense, top technical experts, no vendor pitches, 
unmatched networking opportunities. Visit www.blackhat.com
_______________________________________________
Linux-usb-users@lists.sourceforge.net
To unsubscribe, use the last form field at:
https://lists.sourceforge.net/lists/listinfo/linux-usb-users
[prev in list] [next in list] [prev in thread] [next in thread]