On Sun, Dec 17, 2017 at 06:56:05PM +0000, Mauro Santos wrote: > I believe this is the right place to report this problem, but if it > isn't please point me in the right direction. Adding the developer of that patch, and the sound maintainer and developers to the thread. > I have noticed that after the update from kernel 4.14.5 to 4.14.6 > alsamixer does not show the usual volume controls for my usb soundcard. > > Reverting 3884d12e17ab770aa0f5d4bc65bfbfd006f417fa ALSA: usb-audio: Add > check return value for usb_string() (from linux-stable) makes the > controls come back again with kernel 4.14.6. > > Amixer shows a difference between the good and bad case. > > Good amixer output (4.14.5): > Simple mixer control 'PCM',0 > Capabilities: pvolume pswitch pswitch-joined > Playback channels: Front Left - Front Right > Limits: Playback 0 - 110 > Mono: > Front Left: Playback 0 [0%] [-55.00dB] [on] > Front Right: Playback 0 [0%] [-55.00dB] [on] > Simple mixer control 'PCM Capture Source',0 > Capabilities: enum > Items: 'Line' 'IEC958 In' > Item0: 'Line' > Simple mixer control 'Line',0 > Capabilities: cvolume cswitch cswitch-joined > Capture channels: Front Left - Front Right > Limits: Capture 0 - 104 > Front Left: Capture 20 [19%] [-30.00dB] [off] > Front Right: Capture 20 [19%] [-30.00dB] [off] > > Bad amixer output (4.14.6): > Simple mixer control 'PCM',0 > Capabilities: pvolume pswitch pswitch-joined enum > Items: 'Line' 'IEC958 In' > Item0: 'Line' > Item1: 'Line' > Simple mixer control 'Line',0 > Capabilities: cvolume cswitch cswitch-joined > Capture channels: Front Left - Front Right > Limits: Capture 0 - 104 > Front Left: Capture 20 [19%] [-30.00dB] [off] > Front Right: Capture 20 [19%] [-30.00dB] [off] > > The output of lsusb -v for the affected sound card is attached. > > -- > Mauro Santos > Bus 001 Device 006: ID 1852:7022 GYROCOM C&C Co., LTD > Device Descriptor: > bLength 18 > bDescriptorType 1 > bcdUSB 1.10 > bDeviceClass 0 > bDeviceSubClass 0 > bDeviceProtocol 0 > bMaxPacketSize0 8 > idVendor 0x1852 GYROCOM C&C Co., LTD > idProduct 0x7022 > bcdDevice 0.01 > iManufacturer 1 HiFimeDIY Audio > iProduct 2 HiFimeDIY DAC > iSerial 0 > bNumConfigurations 1 > Configuration Descriptor: > bLength 9 > bDescriptorType 2 > wTotalLength 428 > bNumInterfaces 4 > bConfigurationValue 1 > iConfiguration 0 > bmAttributes 0x80 > (Bus Powered) > MaxPower 500mA > Interface Descriptor: > bLength 9 > bDescriptorType 4 > bInterfaceNumber 0 > bAlternateSetting 0 > bNumEndpoints 1 > bInterfaceClass 3 Human Interface Device > bInterfaceSubClass 0 > bInterfaceProtocol 0 > iInterface 0 > HID Device Descriptor: > bLength 9 > bDescriptorType 33 > bcdHID 1.00 > bCountryCode 0 Not supported > bNumDescriptors 1 > bDescriptorType 34 Report > wDescriptorLength 58 > 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 0x0012 1x 18 bytes > bInterval 32 > Interface Descriptor: > bLength 9 > bDescriptorType 4 > bInterfaceNumber 1 > bAlternateSetting 0 > bNumEndpoints 0 > bInterfaceClass 1 Audio > bInterfaceSubClass 1 Control Device > bInterfaceProtocol 0 > iInterface 3 SABRE 24/96 DAC_DigiT > AudioControl Interface Descriptor: > bLength 10 > bDescriptorType 36 > bDescriptorSubtype 1 (HEADER) > bcdADC 1.00 > wTotalLength 92 > bInCollection 2 > baInterfaceNr( 0) 2 > baInterfaceNr( 1) 3 > AudioControl Interface Descriptor: > bLength 12 > bDescriptorType 36 > bDescriptorSubtype 2 (INPUT_TERMINAL) > bTerminalID 1 > wTerminalType 0x0603 Line Connector > bAssocTerminal 0 > bNrChannels 2 > wChannelConfig 0x0003 > Left Front (L) > Right Front (R) > iChannelNames 0 > iTerminal 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 12 > bDescriptorType 36 > bDescriptorSubtype 2 (INPUT_TERMINAL) > bTerminalID 9 > wTerminalType 0x0101 USB Streaming > bAssocTerminal 0 > bNrChannels 2 > wChannelConfig 0x0003 > Left Front (L) > Right Front (R) > iChannelNames 0 > iTerminal 0 > AudioControl Interface Descriptor: > bLength 9 > bDescriptorType 36 > bDescriptorSubtype 3 (OUTPUT_TERMINAL) > bTerminalID 3 > wTerminalType 0x0605 SPDIF interface > bAssocTerminal 0 > bSourceID 16 > iTerminal 0 > AudioControl Interface Descriptor: > bLength 9 > bDescriptorType 36 > bDescriptorSubtype 3 (OUTPUT_TERMINAL) > bTerminalID 7 > wTerminalType 0x0101 USB Streaming > bAssocTerminal 0 > bSourceID 11 > iTerminal 0 > AudioControl Interface Descriptor: > bLength 10 > bDescriptorType 36 > bDescriptorSubtype 6 (FEATURE_UNIT) > bUnitID 14 > bSourceID 1 > bControlSize 1 > bmaControls( 0) 0x01 > Mute Control > bmaControls( 1) 0x02 > Volume Control > bmaControls( 2) 0x02 > Volume Control > iFeature 0 > AudioControl Interface Descriptor: > bLength 10 > bDescriptorType 36 > bDescriptorSubtype 6 (FEATURE_UNIT) > bUnitID 16 > bSourceID 9 > bControlSize 1 > bmaControls( 0) 0x01 > Mute Control > bmaControls( 1) 0x02 > Volume Control > bmaControls( 2) 0x02 > Volume Control > iFeature 0 > AudioControl Interface Descriptor: > bLength 8 > bDescriptorType 36 > bDescriptorSubtype 5 (SELECTOR_UNIT) > bUnitID 11 > bNrInPins 2 > baSource( 0) 14 > baSource( 1) 5 > iSelector 0 > 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 7 > bDelay 0 frames > wFormatTag 1 PCM > AudioStreaming Interface Descriptor: > bLength 26 > bDescriptorType 36 > bDescriptorSubtype 2 (FORMAT_TYPE) > bFormatType 1 (FORMAT_TYPE_I) > bNrChannels 2 > bSubframeSize 2 > bBitResolution 16 > bSamFreqType 6 Discrete > tSamFreq[ 0] 8000 > tSamFreq[ 1] 16000 > tSamFreq[ 2] 32000 > tSamFreq[ 3] 44100 > tSamFreq[ 4] 48000 > tSamFreq[ 5] 96000 > Endpoint Descriptor: > bLength 9 > bDescriptorType 5 > bEndpointAddress 0x82 EP 2 IN > bmAttributes 9 > Transfer Type Isochronous > Synch Type Adaptive > Usage Type Data > wMaxPacketSize 0x0184 1x 388 bytes > bInterval 1 > bRefresh 0 > bSynchAddress 0 > AudioControl Endpoint Descriptor: > bLength 7 > bDescriptorType 37 > bDescriptorSubtype 1 (EP_GENERAL) > bmAttributes 0x01 > Sampling Frequency > bLockDelayUnits 2 Decoded PCM samples > wLockDelay 2 Decoded PCM samples > Interface Descriptor: > bLength 9 > bDescriptorType 4 > bInterfaceNumber 2 > bAlternateSetting 2 > bNumEndpoints 1 > bInterfaceClass 1 Audio > bInterfaceSubClass 2 Streaming > bInterfaceProtocol 0 > iInterface 0 > AudioStreaming Interface Descriptor: > bLength 7 > bDescriptorType 36 > bDescriptorSubtype 1 (AS_GENERAL) > bTerminalLink 7 > bDelay 0 frames > wFormatTag 1 PCM > AudioStreaming Interface Descriptor: > bLength 26 > bDescriptorType 36 > bDescriptorSubtype 2 (FORMAT_TYPE) > bFormatType 1 (FORMAT_TYPE_I) > bNrChannels 2 > bSubframeSize 3 > bBitResolution 24 > bSamFreqType 6 Discrete > tSamFreq[ 0] 8000 > tSamFreq[ 1] 16000 > tSamFreq[ 2] 32000 > tSamFreq[ 3] 44100 > tSamFreq[ 4] 48000 > tSamFreq[ 5] 96000 > Endpoint Descriptor: > bLength 9 > bDescriptorType 5 > bEndpointAddress 0x82 EP 2 IN > bmAttributes 9 > Transfer Type Isochronous > Synch Type Adaptive > Usage Type Data > wMaxPacketSize 0x0246 1x 582 bytes > bInterval 1 > bRefresh 0 > bSynchAddress 0 > AudioControl Endpoint Descriptor: > bLength 7 > bDescriptorType 37 > bDescriptorSubtype 1 (EP_GENERAL) > bmAttributes 0x01 > Sampling Frequency > bLockDelayUnits 2 Decoded PCM samples > wLockDelay 2 Decoded PCM samples > Interface Descriptor: > bLength 9 > bDescriptorType 4 > bInterfaceNumber 3 > bAlternateSetting 0 > bNumEndpoints 0 > bInterfaceClass 1 Audio > bInterfaceSubClass 2 Streaming > bInterfaceProtocol 0 > iInterface 0 > Interface Descriptor: > bLength 9 > bDescriptorType 4 > bInterfaceNumber 3 > 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 9 > bDelay 0 frames > wFormatTag 1 PCM > AudioStreaming Interface Descriptor: > bLength 26 > bDescriptorType 36 > bDescriptorSubtype 2 (FORMAT_TYPE) > bFormatType 1 (FORMAT_TYPE_I) > bNrChannels 2 > bSubframeSize 2 > bBitResolution 16 > bSamFreqType 6 Discrete > tSamFreq[ 0] 8000 > tSamFreq[ 1] 16000 > tSamFreq[ 2] 32000 > tSamFreq[ 3] 44100 > tSamFreq[ 4] 48000 > tSamFreq[ 5] 96000 > Endpoint Descriptor: > bLength 9 > bDescriptorType 5 > bEndpointAddress 0x03 EP 3 OUT > bmAttributes 9 > Transfer Type Isochronous > Synch Type Adaptive > Usage Type Data > wMaxPacketSize 0x0184 1x 388 bytes > bInterval 1 > bRefresh 0 > bSynchAddress 0 > AudioControl Endpoint Descriptor: > bLength 7 > bDescriptorType 37 > bDescriptorSubtype 1 (EP_GENERAL) > bmAttributes 0x01 > Sampling Frequency > bLockDelayUnits 2 Decoded PCM samples > wLockDelay 2 Decoded PCM samples > Interface Descriptor: > bLength 9 > bDescriptorType 4 > bInterfaceNumber 3 > bAlternateSetting 2 > bNumEndpoints 1 > bInterfaceClass 1 Audio > bInterfaceSubClass 2 Streaming > bInterfaceProtocol 0 > iInterface 0 > AudioStreaming Interface Descriptor: > bLength 7 > bDescriptorType 36 > bDescriptorSubtype 1 (AS_GENERAL) > bTerminalLink 9 > bDelay 0 frames > wFormatTag 1 PCM > AudioStreaming Interface Descriptor: > bLength 26 > bDescriptorType 36 > bDescriptorSubtype 2 (FORMAT_TYPE) > bFormatType 1 (FORMAT_TYPE_I) > bNrChannels 2 > bSubframeSize 3 > bBitResolution 24 > bSamFreqType 6 Discrete > tSamFreq[ 0] 8000 > tSamFreq[ 1] 16000 > tSamFreq[ 2] 32000 > tSamFreq[ 3] 44100 > tSamFreq[ 4] 48000 > tSamFreq[ 5] 96000 > Endpoint Descriptor: > bLength 9 > bDescriptorType 5 > bEndpointAddress 0x03 EP 3 OUT > bmAttributes 9 > Transfer Type Isochronous > Synch Type Adaptive > Usage Type Data > wMaxPacketSize 0x0246 1x 582 bytes > bInterval 1 > bRefresh 0 > bSynchAddress 0 > AudioControl Endpoint Descriptor: > bLength 7 > bDescriptorType 37 > bDescriptorSubtype 1 (EP_GENERAL) > bmAttributes 0x01 > Sampling Frequency > bLockDelayUnits 2 Decoded PCM samples > wLockDelay 2 Decoded PCM samples > Interface Descriptor: > bLength 9 > bDescriptorType 4 > bInterfaceNumber 3 > bAlternateSetting 3 > bNumEndpoints 1 > bInterfaceClass 1 Audio > bInterfaceSubClass 2 Streaming > bInterfaceProtocol 0 > iInterface 0 > AudioStreaming Interface Descriptor: > bLength 7 > bDescriptorType 36 > bDescriptorSubtype 1 (AS_GENERAL) > bTerminalLink 9 > bDelay 0 frames > wFormatTag 8193 IEC1937_AC-3 > AudioStreaming Interface Descriptor: > bLength 11 > bDescriptorType 36 > bDescriptorSubtype 2 (FORMAT_TYPE) > bFormatType 3 (FORMAT_TYPE_III) > bNrChannels 2 > bSubframeSize 2 > bBitResolution 16 > bSamFreqType 1 Discrete > tSamFreq[ 0] 48000 > Endpoint Descriptor: > bLength 9 > bDescriptorType 5 > bEndpointAddress 0x03 EP 3 OUT > bmAttributes 9 > Transfer Type Isochronous > Synch Type Adaptive > Usage Type Data > wMaxPacketSize 0x00c0 1x 192 bytes > bInterval 1 > bRefresh 0 > bSynchAddress 0 > AudioControl Endpoint Descriptor: > bLength 7 > bDescriptorType 37 > bDescriptorSubtype 1 (EP_GENERAL) > bmAttributes 0x01 > Sampling Frequency > bLockDelayUnits 2 Decoded PCM samples > wLockDelay 2 Decoded PCM samples > Device Status: 0x0000 > (Bus Powered) This is odd, Takashi, I thought we fixed up the problem that if the string was invalid, the code would continue to go on, it's not a "real" error. Did that not get marked for the stable trees? thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html