Re: assign USB Audio to interface 1 and 2
From: Doron Holan [MS] (doronh_at_nospam.microsoft.com)
Date: 11/15/04
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Date: Mon, 15 Nov 2004 08:40:06 -0800
actually, there is special code in the generic parent that knows about audio
devices. if the audio device conforms to the usb audio spec, the other
functions should be split it out from it
d
-- Please do not send e-mail directly to this alias. this alias is for newsgroup purposes only. This posting is provided "AS IS" with no warranties, and confers no rights. "Y. LAMY" <Y. LAMY@discussions.microsoft.com> wrote in message news:E74ACB82-CCD6-4944-A9A4-948F23142421@microsoft.com... > the support of multifunction devices with several interfaces per function > is > a quite recent addition to the USB specification. Until now, multifunction > devices supports only one interface per function. > > If your audio device is on interfaces 0 and 1, the audio class driver is > loaded for your device and other functions are ignored. > > to implement it the way you want, you must use an Interface association > descriptor. > see > http://www.microsoft.com/whdc/system/bus/USB/IAD.mspx > for more details. > > Y. LAMY @ PHILOG > > "yamamoto" wrote: > >> Dear All >> >> We are developping a USB Composite Device. >> Our USB Device had audio interfaces and a vendor-specfic-interface. >> >> When I assigned audio interfaces( control and streaming ) to interface0 >> and >> 1, >> Device Manager said no problem.( refer to cf.A ) >> >> But When I assigned audio interfaces to interface1 and 2, >> Device Manager said a usb audio device had [Yellow !]. >> ( refer to cf.B ) >> >> I want to assign the vendor-specfic-interface-descriptor to interface0. >> >> What Should I do to assign Audio interface descriptor from interface0 ? >> >> Best Regards. >> >> Yamamoto >> ///////////////// >> // cf.A >> >> ===>Device Descriptor<=== >> bLength: 0x12 >> bDescriptorType: 0x01 >> bcdUSB: 0x0200 >> bDeviceClass: 0x00 -> This is an Interface Class >> Defined Device >> bDeviceSubClass: 0x00 >> bDeviceProtocol: 0x00 >> bMaxPacketSize0: 0x40 = (64) Bytes >> idVendor: 0x1262idProduct: >> 0x2581 >> bcdDevice: 0x0100 >> iManufacturer: 0x01 >> English (United States) "MVision" >> iProduct: 0x02 >> English (United States) "Mv-Compose" >> iSerialNumber: 0x03 >> English (United States) "1.00" >> bNumConfigurations: 0x01 >> >> ===>Configuration Descriptor<=== >> bLength: 0x09 >> bDescriptorType: 0x02 >> wTotalLength: 0x0074 -> Validated >> bNumInterfaces: 0x03 >> bConfigurationValue: 0x01 >> iConfiguration: 0x00 >> bmAttributes: 0x80 -> Bus Powered >> MaxPower: 0x32 = 100 mA >> >> ===>Interface Descriptor<=== >> bLength: 0x09 >> bDescriptorType: 0x04 >> bInterfaceNumber: 0x00 >> bAlternateSetting: 0x00 >> bNumEndpoints: 0x00 >> bInterfaceClass: 0x01 -> Audio Interface Class >> bInterfaceSubClass: 0x01 -> Audio Control Interface >> SubClass >> bInterfaceProtocol: 0x00 >> CAUTION: This may be an invalid bInterfaceProtocol >> iInterface: 0x00 >> >> ===>Audio Control Interface Header Descriptor<=== >> bLength: 0x09 >> bDescriptorType: 0x24 >> bDescriptorSubtype: 0x01 >> bcdADC: 0x0100 >> wTotalLength: 0x001E >> bInCollection: 0x01 >> baInterfaceNr[1]: 0x01 >> >> ===>Audio Control Input Terminal Descriptor<=== >> bLength: 0x0C >> bDescriptorType: 0x24 >> bDescriptorSubtype: 0x02 >> bTerminalID: 0x01 >> wTerminalType: 0x0201 (Microphone) >> bAssocTerminal: 0x00 >> bNrChannels: 0x01 >> wChannelConfig: 0x0000 >> iChannelNames: 0x00 >> iTerminal: 0x00 >> >> ===>Audio Control Output Terminal Descriptor<=== >> bLength: 0x09 >> bDescriptorType: 0x24 >> bDescriptorSubtype: 0x03 >> bTerminalID: 0x02 >> wTerminalType: 0x0101 (USB streaming) >> bAssocTerminal: 0x00 >> bSourceID: 0x01 >> iTerminal: 0x00 >> >> ===>Interface Descriptor<=== >> bLength: 0x09 >> bDescriptorType: 0x04 >> bInterfaceNumber: 0x01 >> bAlternateSetting: 0x00 >> bNumEndpoints: 0x00 >> bInterfaceClass: 0x01 -> Audio Interface Class >> bInterfaceSubClass: 0x02 -> Audio Streaming Interface >> SubClass >> bInterfaceProtocol: 0x00 >> CAUTION: This may be an invalid bInterfaceProtocol >> iInterface: 0x00 >> >> ===>Interface Descriptor<=== >> bLength: 0x09 >> bDescriptorType: 0x04 >> bInterfaceNumber: 0x01 >> bAlternateSetting: 0x01 >> bNumEndpoints: 0x01 >> bInterfaceClass: 0x01 -> Audio Interface Class >> bInterfaceSubClass: 0x02 -> Audio Streaming Interface >> SubClass >> bInterfaceProtocol: 0x00 >> CAUTION: This may be an invalid bInterfaceProtocol >> iInterface: 0x00 >> >> ===>Audio Streaming Class Specific Interface Descriptor<=== >> bLength: 0x07 >> bDescriptorType: 0x24 >> bDescriptorSubtype: 0x01 >> bTerminalLink: 0x02 >> bDelay: 0x00 >> wFormatTag: 0x0001 (PCM) >> >> ===>Audio Streaming Format Type Descriptor<=== >> bLength: 0x0B >> bDescriptorType: 0x24 >> bDescriptorSubtype: 0x02 >> bFormatType: 0x01 >> bNrChannels: 0x01 >> bSubframeSize: 0x02 >> bBitResolution: 0x10 >> bSamFreqType: 0x01 >> tSamFreq[1]: 0x00BB80 (48000 Hz) >> >> ===>Endpoint Descriptor<=== >> bLength: 0x09 >> bDescriptorType: 0x05 >> bEndpointAddress: 0x82 -> Direction: IN - EndpointID: 2 >> bmAttributes: 0x01 -> Isochronous Transfer Type >> Synchronization Type = No Synchronization >> Usage Type = Data Endpoint >> wMaxPacketSize: 0x00C0 = 1 transactions per microframe, >> 0xC0 max bytes >> wInterval: 0x0004 >> bSyncAddress: 0x00 >> >> ===>Audio Streaming Class Specific Audio Data Endpoint >> Descriptor<=== >> bLength: 0x07 >> bDescriptorType: 0x25 >> bDescriptorSubtype: 0x01 >> bmAttributes: 0x00 >> bLockDelayUnits: 0x00 >> wLockDelay: 0x0000 >> >> ===>Interface Descriptor<=== >> bLength: 0x09 >> bDescriptorType: 0x04 >> bInterfaceNumber: 0x02 >> bAlternateSetting: 0x00 >> bNumEndpoints: 0x01 >> bInterfaceClass: 0xFF -> pre-release Video Interface >> Class >> bInterfaceSubClass: 0x00 >> *!*CAUTION: This appears to be an invalid bInterfaceSubClass >> bInterfaceProtocol: 0x00 >> iInterface: 0x00 >> *!*ERROR: 0xFF is the prerelease USB Video Class ID >> >> ===>Endpoint Descriptor<=== >> bLength: 0x07 >> bDescriptorType: 0x05 >> bEndpointAddress: 0x83 -> Direction: IN - EndpointID: 3 >> bmAttributes: 0x02 -> Bulk Transfer Type >> wMaxPacketSize: 0x0100 = 0x100 max bytes >> bInterval: 0x01 >> >> ///////////////// >> // cf.B >> >> ===>Device Descriptor<=== >> bLength: 0x12 >> bDescriptorType: 0x01 >> bcdUSB: 0x0200 >> bDeviceClass: 0x00 -> This is an Interface Class >> Defined Device >> bDeviceSubClass: 0x00 >> bDeviceProtocol: 0x00 >> bMaxPacketSize0: 0x40 = (64) Bytes >> idVendor: 0x1262idProduct: >> 0x2581 >> bcdDevice: 0x0100 >> iManufacturer: 0x01 >> English (United States) "MVision" >> iProduct: 0x02 >> English (United States) "Mv-Compose" >> iSerialNumber: 0x03 >> English (United States) "1.00" >> bNumConfigurations: 0x01 >> >> ===>Configuration Descriptor<=== >> bLength: 0x09 >> bDescriptorType: 0x02 >> wTotalLength: 0x0074 -> Validated >> bNumInterfaces: 0x03 >> bConfigurationValue: 0x01 >> iConfiguration: 0x00 >> bmAttributes: 0x80 -> Bus Powered >> MaxPower: 0x32 = 100 mA >> >> ===>Interface Descriptor<=== >> bLength: 0x09 >> bDescriptorType: 0x04 >> bInterfaceNumber: 0x00 >> bAlternateSetting: 0x00 >> bNumEndpoints: 0x01 >> bInterfaceClass: 0xFF -> pre-release Video Interface >> Class >> bInterfaceSubClass: 0x00 >> *!*CAUTION: This appears to be an invalid bInterfaceSubClass >> bInterfaceProtocol: 0x00 >> iInterface: 0x00 >> *!*ERROR: 0xFF is the prerelease USB Video Class ID >> >> ===>Endpoint Descriptor<=== >> bLength: 0x07 >> bDescriptorType: 0x05 >> bEndpointAddress: 0x83 -> Direction: IN - EndpointID: 3 >> bmAttributes: 0x02 -> Bulk Transfer Type >> wMaxPacketSize: 0x0100 = 0x100 max bytes >> bInterval: 0x01 >> >> ===>Interface Descriptor<=== >> bLength: 0x09 >> bDescriptorType: 0x04 >> bInterfaceNumber: 0x01 >> bAlternateSetting: 0x00 >> bNumEndpoints: 0x00 >> bInterfaceClass: 0x01 -> Audio Interface Class >> bInterfaceSubClass: 0x01 -> Audio Control Interface >> SubClass >> bInterfaceProtocol: 0x00 >> CAUTION: This may be an invalid bInterfaceProtocol >> iInterface: 0x00 >> >> ===>Audio Control Interface Header Descriptor<=== >> bLength: 0x09 >> bDescriptorType: 0x24 >> bDescriptorSubtype: 0x01 >> bcdADC: 0x0100 >> wTotalLength: 0x001E >> bInCollection: 0x01 >> baInterfaceNr[1]: 0x01 >> >> ===>Audio Control Input Terminal Descriptor<=== >> bLength: 0x0C >> bDescriptorType: 0x24 >> bDescriptorSubtype: 0x02 >> bTerminalID: 0x01 >> wTerminalType: 0x0201 (Microphone) >> bAssocTerminal: 0x00 >> bNrChannels: 0x01 >> wChannelConfig: 0x0000 >> iChannelNames: 0x00 >> iTerminal: 0x00 >> >> ===>Audio Control Output Terminal Descriptor<=== >> bLength: 0x09 >> bDescriptorType: 0x24 >> bDescriptorSubtype: 0x03 >> bTerminalID: 0x02 >> wTerminalType: 0x0101 (USB streaming) >> bAssocTerminal: 0x00 >> bSourceID: 0x01 >> iTerminal: 0x00 >> >> ===>Interface Descriptor<=== >> bLength: 0x09 >> bDescriptorType: 0x04 >> bInterfaceNumber: 0x02 >> bAlternateSetting: 0x00 >> bNumEndpoints: 0x00 >> bInterfaceClass: 0x01 -> Audio Interface Class >> bInterfaceSubClass: 0x02 -> Audio Streaming Interface >> SubClass >> bInterfaceProtocol: 0x00 >> CAUTION: This may be an invalid bInterfaceProtocol >> iInterface: 0x00 >> >> ===>Interface Descriptor<=== >> bLength: 0x09 >> bDescriptorType: 0x04 >> bInterfaceNumber: 0x02 >> bAlternateSetting: 0x01 >> bNumEndpoints: 0x01 >> bInterfaceClass: 0x01 -> Audio Interface Class >> bInterfaceSubClass: 0x02 -> Audio Streaming Interface >> SubClass >> bInterfaceProtocol: 0x00 >> CAUTION: This may be an invalid bInterfaceProtocol >> iInterface: 0x00 >> >> ===>Audio Streaming Class Specific Interface Descriptor<=== >> bLength: 0x07 >> bDescriptorType: 0x24 >> bDescriptorSubtype: 0x01 >> bTerminalLink: 0x02 >> bDelay: 0x00 >> wFormatTag: 0x0001 (PCM) >> >> ===>Audio Streaming Format Type Descriptor<=== >> bLength: 0x0B >> bDescriptorType: 0x24 >> bDescriptorSubtype: 0x02 >> bFormatType: 0x01 >> bNrChannels: 0x01 >> bSubframeSize: 0x02 >> bBitResolution: 0x10 >> bSamFreqType: 0x01 >> tSamFreq[1]: 0x00BB80 (48000 Hz) >> >> ===>Endpoint Descriptor<=== >> bLength: 0x09 >> bDescriptorType: 0x05 >> bEndpointAddress: 0x82 -> Direction: IN - EndpointID: 2 >> bmAttributes: 0x01 -> Isochronous Transfer Type >> Synchronization Type = No Synchronization >> Usage Type = Data Endpoint >> wMaxPacketSize: 0x00C0 = 1 transactions per microframe, >> 0xC0 max bytes >> wInterval: 0x0004 >> bSyncAddress: 0x00 >> >> ===>Audio Streaming Class Specific Audio Data Endpoint >> Descriptor<=== >> bLength: 0x07 >> bDescriptorType: 0x25 >> bDescriptorSubtype: 0x01 >> bmAttributes: 0x00 >> bLockDelayUnits: 0x00 >> wLockDelay: 0x0000 >> >>
- Next message: CKNC: "Re: floppy drive works under XP, W2K Dos but not NT4(SP6a)"
- Previous message: Calvin Guan: "Re: Start and stop via SCM not multiprocessor-safe?"
- In reply to: Y. LAMY: "RE: assign USB Audio to interface 1 and 2"
- Next in thread: yamamoto: "Re: assign USB Audio to interface 1 and 2"
- Reply: yamamoto: "Re: assign USB Audio to interface 1 and 2"
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