Hi, Am I sending to the right group? Maybe this should be going to alsa-dev ....
Clemens answered my previous mail and asked for "lsusb -v" output. I sent this in (it's quoted again below) Could any ALSA guru address the point that Clemens raised - ie is the Quickcam Web mic properly recognised, based on the "lsusb -v" output below? It seems to be to me, but I am looking with untrained eyes. Is Takashi Iwai still maintaining the snd-usb-audio driver? If so, does he look at his list? Perhaps he would know, or be interested. Otherwise, ... Jaroslav? anybody? I don't mind getting my hands dirty in a bit of code, by the way, if that's the quickest way to get the mic working under ALSA. Due to time constraints though I could do with a quick pointer or two to get me started. Thanks Dan --- Dan Garton <[EMAIL PROTECTED]> wrote: > > --- Clemens Ladisch <[EMAIL PROTECTED]> wrote: > > Dan Garton wrote: > > > I have been trying to use the snd-usb-audio ALSA > > > driver to capture sound from the built-in > > microphone > > > on my webcam: > > > Bus 001 Device 002: ID 046d:0850 Logitech, Inc. > > QuickCam Web > > > ... > > > # modprobe snd-usb-audio > > > ALSA ../alsa-kernel/usb/usbaudio.c:1980: 2:2:0 > : > > > AS_GENERAL descriptor not found > > > > It seems your device isn't 100% compatible with > the > > USB audio > > specification. Please post the output of "lsusb > -v". > > Thanks for the response. I had thought that the > device > was fully recognised, from the contents of the files > generated in > /proc/asound/card1/. > > Anyway here is the (complete) verbose lsusb output: > > yukka root # lsusb -v > > Bus 003 Device 001: ID 0000:0000 > Device Descriptor: > bLength 18 > bDescriptorType 1 > bcdUSB 2.00 > bDeviceClass 9 Hub > bDeviceSubClass 0 > bDeviceProtocol 1 > bMaxPacketSize0 8 > idVendor 0x0000 > idProduct 0x0000 > bcdDevice 2.04 > iManufacturer 3 Linux 2.4.20-gentoo-r5 > ehci-hcd > iProduct 2 Silicon Integrated > Systems > [SiS] SiS7002 USB 2.0 > iSerial 1 00:03.2 > bNumConfigurations 1 > Configuration Descriptor: > bLength 9 > bDescriptorType 2 > wTotalLength 25 > bNumInterfaces 1 > bConfigurationValue 1 > iConfiguration 0 > bmAttributes 0x40 > Self Powered > MaxPower 0mA > Interface Descriptor: > bLength 9 > bDescriptorType 4 > bInterfaceNumber 0 > bAlternateSetting 0 > bNumEndpoints 1 > bInterfaceClass 9 Hub > bInterfaceSubClass 0 > bInterfaceProtocol 0 > iInterface 0 > Endpoint Descriptor: > bLength 7 > bDescriptorType 5 > bEndpointAddress 0x81 EP 1 IN > bmAttributes 3 > Transfer Type Interrupt > Synch Type none > wMaxPacketSize 2 > bInterval 12 > Language IDs: (length=4) > 0000 (null)((null)) > > Bus 002 Device 001: ID 0000:0000 > Device Descriptor: > bLength 18 > bDescriptorType 1 > bcdUSB 1.10 > bDeviceClass 9 Hub > bDeviceSubClass 0 > bDeviceProtocol 0 > bMaxPacketSize0 8 > idVendor 0x0000 > idProduct 0x0000 > bcdDevice 0.00 > iManufacturer 0 > iProduct 2 USB OHCI Root Hub > iSerial 1 f098e000 > bNumConfigurations 1 > Configuration Descriptor: > bLength 9 > bDescriptorType 2 > wTotalLength 25 > bNumInterfaces 1 > bConfigurationValue 1 > iConfiguration 0 > bmAttributes 0x40 > Self Powered > MaxPower 0mA > Interface Descriptor: > bLength 9 > bDescriptorType 4 > bInterfaceNumber 0 > bAlternateSetting 0 > bNumEndpoints 1 > bInterfaceClass 9 Hub > bInterfaceSubClass 0 > bInterfaceProtocol 0 > iInterface 0 > Endpoint Descriptor: > bLength 7 > bDescriptorType 5 > bEndpointAddress 0x81 EP 1 IN > bmAttributes 3 > Transfer Type Interrupt > Synch Type none > wMaxPacketSize 2 > bInterval 255 > Language IDs: (length=4) > 0000 (null)((null)) > > Bus 001 Device 001: ID 0000:0000 > Device Descriptor: > bLength 18 > bDescriptorType 1 > bcdUSB 1.10 > bDeviceClass 9 Hub > bDeviceSubClass 0 > bDeviceProtocol 0 > bMaxPacketSize0 8 > idVendor 0x0000 > idProduct 0x0000 > bcdDevice 0.00 > iManufacturer 0 > iProduct 2 USB OHCI Root Hub > iSerial 1 f098c000 > bNumConfigurations 1 > Configuration Descriptor: > bLength 9 > bDescriptorType 2 > wTotalLength 25 > bNumInterfaces 1 > bConfigurationValue 1 > iConfiguration 0 > bmAttributes 0x40 > Self Powered > MaxPower 0mA > Interface Descriptor: > bLength 9 > bDescriptorType 4 > bInterfaceNumber 0 > bAlternateSetting 0 > bNumEndpoints 1 > bInterfaceClass 9 Hub > bInterfaceSubClass 0 > bInterfaceProtocol 0 > iInterface 0 > Endpoint Descriptor: > bLength 7 > bDescriptorType 5 > bEndpointAddress 0x81 EP 1 IN > bmAttributes 3 > Transfer Type Interrupt > Synch Type none > wMaxPacketSize 2 > bInterval 255 > Language IDs: (length=4) > 0000 (null)((null)) > > Bus 001 Device 002: ID 046d:0850 Logitech, Inc. > QuickCam Web > Device Descriptor: > bLength 18 > bDescriptorType 1 > bcdUSB 1.00 > bDeviceClass 255 Vendor Specific Class > bDeviceSubClass 255 Vendor Specific Subclass > bDeviceProtocol 255 Vendor Specific Protocol > bMaxPacketSize0 8 > idVendor 0x046d Logitech, Inc. > idProduct 0x0850 QuickCam Web > bcdDevice 1.00 > iManufacturer 0 > iProduct 1 Camera > iSerial 0 > bNumConfigurations 1 > Configuration Descriptor: > bLength 9 > bDescriptorType 2 > wTotalLength 182 > bNumInterfaces 3 > bConfigurationValue 1 > === message truncated === __________________________________ Do you Yahoo!? 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