A NOTE has been added to this issue. ====================================================================== <https://bugtrack.alsa-project.org/alsa-bug/view.php?id=2321> ====================================================================== Reported By: doobedoobedo Assigned To: Clemens Ladisch ====================================================================== Project: ALSA - driver Issue ID: 2321 Category: USB - usb-audio Reproducibility: always Severity: major Priority: normal Status: assigned Distribution: Gentoo Kernel Version: 2.6.14/5 ====================================================================== Date Submitted: 08-01-2006 16:43 CEST Last Modified: 08-03-2006 03:40 CEST ====================================================================== Summary: no audio and very few mixer options with C-Media 106 based USB sound card Description: no audio output with the snd-usb-audio module amixer output: Simple mixer control 'PCM',0 Capabilities: cvolume cswitch cswitch-joined Capture channels: Front Left - Front Right Limits: Capture 0 - 4095 Front Left: Capture 2048 [50%] [on] Front Right: Capture 2048 [50%] [on] Simple mixer control 'PCM Capture Source',0 Capabilities: enum Items: 'Mic' 'Input 1' 'Input 2' 'Mixer' Item0: 'Mic' Simple mixer control 'PCM',1 Capabilities: cvolume Capture channels: Front Left - Front Right Limits: Capture 0 - 4095 Front Left: Capture 2048 [50%] Front Right: Capture 2048 [50%] Simple mixer control 'Mic',0 Capabilities: pvolume cvolume pswitch pswitch-joined Playback channels: Front Left - Front Right Capture channels: Front Left - Front Right Limits: Playback 0 - 8191 Capture 0 - 4095 Front Left: Playback 2048 [25%] [off] Capture 2048 [50%] Front Right: Playback 2048 [25%] [off] Capture 2048 [50%] Simple mixer control 'Auto Gain Control',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off] Simple mixer control 'Speaker',0 Capabilities: pvolume pswitch pswitch-joined Playback channels: Front Left - Front Right Limits: Playback 0 - 8191 Mono: Front Left: Playback 2048 [25%] [on] Front Right: Playback 2048 [25%] [on] Simple mixer control 'Speaker',1 Capabilities: pvolume pvolume-joined pswitch pswitch-joined Playback channels: Mono Limits: Playback 0 - 37 Mono: Playback 15 [41%] [on] speaker 0 and mic will only decrease in volume in alsamixer, although no sound is played trough the speakers at all. ====================================================================== ---------------------------------------------------------------------- doobedoobedo - 08-01-06 16:54 ---------------------------------------------------------------------- Forgot to give relevant output of lsusb -v: Bus 001 Device 007: ID 0d8c:0006 C-Media Electronics, Inc. Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 8 idVendor 0x0d8c C-Media Electronics, Inc. idProduct 0x0006 bcdDevice 0.10 iManufacturer 0 iProduct 2 USB Audio iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 340 bNumInterfaces 4 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xa0 Remote Wakeup MaxPower 500mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 1 Audio bInterfaceSubClass 1 Control Device bInterfaceProtocol 0 iInterface 0 AudioControl Interface Descriptor: bLength 10 bDescriptorType 36 bDescriptorSubtype 1 (HEADER) bcdADC 1.00 wTotalLength 187 bInCollection 2 baInterfaceNr( 0) 1 baInterfaceNr( 1) 2 AudioControl Interface Descriptor: bLength 12 bDescriptorType 36 bDescriptorSubtype 2 (INPUT_TERMINAL) bTerminalID 1 wTerminalType 0x0101 USB Streaming bAssocTerminal 0 bNrChannels 8 wChannelConfig 0x063f Left Front (L) Right Front (R) Center Front (C) Low Freqency Enhancement (LFE) Left Surround (LS) Right Surround (RS) Side Left (SL) Side Right (SR) iChannelNames 0 iTerminal 0 AudioControl Interface Descriptor: bLength 12 bDescriptorType 36 bDescriptorSubtype 2 (INPUT_TERMINAL) bTerminalID 4 wTerminalType 0x0201 Microphone bAssocTerminal 0 bNrChannels 2 wChannelConfig 0x0003 Left Front (L) Right Front (R) iChannelNames 0 iTerminal 0 AudioControl Interface Descriptor: bLength 10 bDescriptorType 36 bDescriptorSubtype 6 (FEATURE_UNIT) bUnitID 8 bSourceID 4 bControlSize 1 bmaControls( 0) 0x40 Automatic Gain bmaControls( 1) 0x02 Volume bmaControls( 2) 0x02 Volume iFeature 0 AudioControl Interface Descriptor: bLength 10 bDescriptorType 36 bDescriptorSubtype 6 (FEATURE_UNIT) bUnitID 9 bSourceID 4 bControlSize 1 bmaControls( 0) 0x01 Mute bmaControls( 1) 0x02 Volume bmaControls( 2) 0x02 Volume iFeature 0 AudioControl Interface Descriptor: bLength 25 bDescriptorType 36 bDescriptorSubtype 4 (MIXER_UNIT) bUnitID 12 bNrInPins 3 baSourceID( 0) 1 baSourceID( 1) 9 baSourceID( 2) 11 bNrChannels 8 wChannelConfig 0x063f Left Front (L) Right Front (R) Center Front (C) Low Freqency Enhancement (LFE) Left Surround (LS) Right Surround (RS) Side Left (SL) Side Right (SR) iChannelNames 0 bmControls 0x00 bmControls 0x00 bmControls 0x00 iMixer 0 junk at descriptor end: 00 00 00 00 00 00 00 00 00 AudioControl Interface Descriptor: bLength 16 bDescriptorType 36 bDescriptorSubtype 6 (FEATURE_UNIT) bUnitID 13 bSourceID 12 bControlSize 1 bmaControls( 0) 0x03 Mute Volume bmaControls( 1) 0x00 bmaControls( 2) 0x00 bmaControls( 3) 0x00 bmaControls( 4) 0x00 bmaControls( 5) 0x00 bmaControls( 6) 0x00 bmaControls( 7) 0x00 bmaControls( 8) 0x00 iFeature 0 AudioControl Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 3 (OUTPUT_TERMINAL) bTerminalID 3 wTerminalType 0x0301 Speaker bAssocTerminal 0 bSourceID 13 iTerminal 0 AudioControl Interface Descriptor: bLength 10 bDescriptorType 36 bDescriptorSubtype 6 (FEATURE_UNIT) bUnitID 2 bSourceID 12 bControlSize 1 bmaControls( 0) 0x00 bmaControls( 1) 0x02 Volume bmaControls( 2) 0x02 Volume iFeature 0 AudioControl Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 3 (OUTPUT_TERMINAL) bTerminalID 10 wTerminalType 0x0101 USB Streaming bAssocTerminal 0 bSourceID 7 iTerminal 0 AudioControl Interface Descriptor: bLength 10 bDescriptorType 36 bDescriptorSubtype 5 (SELECTOR_UNIT) bUnitID 7 bNrInPins 4 baSource( 0) 8 baSource( 1) 15 baSource( 2) 16 baSource( 3) 2 iSelector 0 AudioControl Interface Descriptor: bLength 12 bDescriptorType 36 bDescriptorSubtype 2 (INPUT_TERMINAL) bTerminalID 6 wTerminalType 0x0603 Line Connector bAssocTerminal 0 bNrChannels 2 wChannelConfig 0x0003 Left Front (L) Right Front (R) iChannelNames 0 iTerminal 0 AudioControl Interface Descriptor: bLength 10 bDescriptorType 36 bDescriptorSubtype 6 (FEATURE_UNIT) bUnitID 15 bSourceID 6 bControlSize 1 bmaControls( 0) 0x00 bmaControls( 1) 0x02 Volume bmaControls( 2) 0x02 Volume iFeature 0 AudioControl Interface Descriptor: bLength 10 bDescriptorType 36 bDescriptorSubtype 6 (FEATURE_UNIT) bUnitID 11 bSourceID 6 bControlSize 1 bmaControls( 0) 0x01 Mute bmaControls( 1) 0x02 Volume bmaControls( 2) 0x02 Volume iFeature 0 AudioControl Interface Descriptor: bLength 12 bDescriptorType 36 bDescriptorSubtype 2 (INPUT_TERMINAL) bTerminalID 5 wTerminalType 0x0605 SPDIF interface bAssocTerminal 0 bNrChannels 2 wChannelConfig 0x0003 Left Front (L) Right Front (R) iChannelNames 0 iTerminal 0 AudioControl Interface Descriptor: bLength 10 bDescriptorType 36 bDescriptorSubtype 6 (FEATURE_UNIT) bUnitID 16 bSourceID 5 bControlSize 1 bmaControls( 0) 0x01 Mute bmaControls( 1) 0x00 bmaControls( 2) 0x00 iFeature 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 1 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 1 bDelay 1 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 14 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 8 bSubframeSize 2 bBitResolution 16 bSamFreqType 2 Discrete tSamFreq[ 0] 44100 tSamFreq[ 1] 48000 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x06 EP 6 OUT bmAttributes 9 Transfer Type Isochronous Synch Type Adaptive Usage Type Data wMaxPacketSize 0x0300 1x 768 bytes bInterval 1 bRefresh 0 bSynchAddress 0 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x01 Sampling Frequency bLockDelayUnits 0 Undefined wLockDelay 0 Undefined Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 1 bNumEndpoints 1 bInterfaceClass 1 Audio bInterfaceSubClass 2 Streaming bInterfaceProtocol 0 iInterface 0 AudioStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (AS_GENERAL) bTerminalLink 10 bDelay 1 frames wFormatTag 1 PCM AudioStreaming Interface Descriptor: bLength 14 bDescriptorType 36 bDescriptorSubtype 2 (FORMAT_TYPE) bFormatType 1 (FORMAT_TYPE_I) bNrChannels 2 bSubframeSize 2 bBitResolution 16 bSamFreqType 2 Discrete tSamFreq[ 0] 44100 tSamFreq[ 1] 48000 Endpoint Descriptor: bLength 9 bDescriptorType 5 bEndpointAddress 0x85 EP 5 IN bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x00c8 1x 200 bytes bInterval 1 bRefresh 0 bSynchAddress 0 AudioControl Endpoint Descriptor: bLength 7 bDescriptorType 37 bDescriptorSubtype 1 (EP_GENERAL) bmAttributes 0x01 Sampling Frequency bLockDelayUnits 0 Undefined wLockDelay 0 Undefined Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 3 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 3 Human Interface Devices bInterfaceSubClass 0 No Subclass bInterfaceProtocol 0 None iInterface 0 HID Device Descriptor: bLength 9 bDescriptorType 33 bcdHID 1.00 bCountryCode 0 Not supported bNumDescriptors 1 bDescriptorType 34 Report wDescriptorLength 50 Report Descriptors: ** UNAVAILABLE ** Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0003 1x 3 bytes bInterval 32 ---------------------------------------------------------------------- doobedoobedo - 08-03-06 03:40 ---------------------------------------------------------------------- I now have it producing 6 channel sound :). It worked on another machine (also Gentoo), so I changed some kernel configs and I have it working with the exception of some of the channels being swapped. I'll update tomorrow as to which. I can't move them using .asoundrc as it complains: aplay -D swapchannels Surround-SDL-testfiles/chan-id.wav -c6 Playing WAVE 'Surround-SDL-testfiles/chan-id.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Channels 6 aplay: set_params:879: Broken configuration for this PCM: no configurations available Issue History Date Modified Username Field Change ====================================================================== 08-01-06 16:43 doobedoobedo New Issue 08-01-06 16:43 doobedoobedo Distribution => Gentoo 08-01-06 16:43 doobedoobedo Kernel Version => 2.6.14/5 08-01-06 16:51 doobedoobedo Issue Monitored: doobedoobedo 08-01-06 16:54 doobedoobedo Note Added: 0011376 08-03-06 03:40 doobedoobedo Note Added: 0011393 ====================================================================== ------------------------------------------------------------------------- Take Surveys. Earn Cash. 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