On 19.05.20 18:16, Stefan Sauer wrote: was there anything helpful in the -v output. Any idea what to try next? Enable some debug output? Stefan > On 19.05.20 08:16, Clemens Ladisch via Alsa-user wrote: >> Stefan Sauer wrote: >>> idProduct=5209 is the Pixel C as a midi device, 520a is when it connects >>> as MTP. >> Your lsusb output showed 520a. Was it supposed to be in MIDI mode at >> that time? >> >> Please show the output of "lsusb -d 18d1:5209 -v". >> > Like I said the '520a' was a mistake in noting down the data. Once I > switch to USB Midi it is 5209. Below is the details output. It is quite > different to the Pixel 3 towards the end, I'll now record this info with > some other devices to compare further. > > lsusb -d 18d1:5209 -v > > Bus 001 Device 036: ID 18d1:5209 Google Inc. Pixel C > Device Descriptor: > bLength 18 > bDescriptorType 1 > bcdUSB 2.10 > bDeviceClass 0 > bDeviceSubClass 0 > bDeviceProtocol 0 > bMaxPacketSize0 64 > idVendor 0x18d1 Google Inc. > idProduct 0x5209 > bcdDevice 2.23 > iManufacturer 1 Google > iProduct 2 Pixel C > iSerial 3 5B16001650 > bNumConfigurations 1 > Configuration Descriptor: > bLength 9 > bDescriptorType 2 > wTotalLength 0x0071 > bNumInterfaces 2 > bConfigurationValue 1 > iConfiguration 4 midi > bmAttributes 0x80 > (Bus Powered) > MaxPower 500mA > Interface Descriptor: > bLength 9 > bDescriptorType 4 > bInterfaceNumber 0 > bAlternateSetting 0 > bNumEndpoints 0 > bInterfaceClass 1 Audio > bInterfaceSubClass 1 Control Device > bInterfaceProtocol 0 > iInterface 5 MIDI function > AudioControl Interface Descriptor: > bLength 9 > bDescriptorType 36 > bDescriptorSubtype 1 (HEADER) > bcdADC 1.00 > wTotalLength 0x0009 > bInCollection 1 > baInterfaceNr(0) 1 > Interface Descriptor: > bLength 9 > bDescriptorType 4 > bInterfaceNumber 1 > bAlternateSetting 0 > bNumEndpoints 2 > bInterfaceClass 1 Audio > bInterfaceSubClass 3 MIDI Streaming > bInterfaceProtocol 0 > iInterface 0 > MIDIStreaming Interface Descriptor: > bLength 7 > bDescriptorType 36 > bDescriptorSubtype 1 (HEADER) > bcdADC 1.00 > wTotalLength 0x0025 > MIDIStreaming Interface Descriptor: > bLength 6 > bDescriptorType 36 > bDescriptorSubtype 2 (MIDI_IN_JACK) > bJackType 2 External > bJackID 1 > iJack 0 > MIDIStreaming Interface Descriptor: > bLength 9 > bDescriptorType 36 > bDescriptorSubtype 3 (MIDI_OUT_JACK) > bJackType 1 Embedded > bJackID 2 > bNrInputPins 1 > baSourceID( 0) 1 > BaSourcePin( 0) 1 > iJack 0 > MIDIStreaming Interface Descriptor: > bLength 6 > bDescriptorType 36 > bDescriptorSubtype 2 (MIDI_IN_JACK) > bJackType 1 Embedded > bJackID 3 > iJack 0 > MIDIStreaming Interface Descriptor: > bLength 9 > bDescriptorType 36 > bDescriptorSubtype 3 (MIDI_OUT_JACK) > bJackType 2 External > bJackID 4 > bNrInputPins 1 > baSourceID( 0) 3 > BaSourcePin( 0) 1 > iJack 0 > Endpoint Descriptor: > bLength 9 > bDescriptorType 5 > bEndpointAddress 0x01 EP 1 OUT > bmAttributes 2 > Transfer Type Bulk > Synch Type None > Usage Type Data > wMaxPacketSize 0x0200 1x 512 bytes > bInterval 0 > bRefresh 0 > bSynchAddress 0 > bMaxBurst 0 > MIDIStreaming Endpoint Descriptor: > bLength 5 > bDescriptorType 37 > bDescriptorSubtype 1 (GENERAL) > bNumEmbMIDIJack 1 > baAssocJackID( 0) 3 > Endpoint Descriptor: > bLength 9 > bDescriptorType 5 > bEndpointAddress 0x81 EP 1 IN > bmAttributes 2 > Transfer Type Bulk > Synch Type None > Usage Type Data > wMaxPacketSize 0x0200 1x 512 bytes > bInterval 0 > bRefresh 0 > bSynchAddress 0 > bMaxBurst 0 > MIDIStreaming Endpoint Descriptor: > bLength 5 > bDescriptorType 37 > bDescriptorSubtype 1 (GENERAL) > bNumEmbMIDIJack 1 > baAssocJackID( 0) 2 > Binary Object Store Descriptor: > bLength 5 > bDescriptorType 15 > wTotalLength 0x0016 > bNumDeviceCaps 2 > USB 2.0 Extension Device Capability: > bLength 7 > bDescriptorType 16 > bDevCapabilityType 2 > bmAttributes 0x00000006 > BESL Link Power Management (LPM) Supported > SuperSpeed USB Device Capability: > bLength 10 > bDescriptorType 16 > bDevCapabilityType 3 > bmAttributes 0x00 > wSpeedsSupported 0x000f > Device can operate at Low Speed (1Mbps) > Device can operate at Full Speed (12Mbps) > Device can operate at High Speed (480Mbps) > Device can operate at SuperSpeed (5Gbps) > bFunctionalitySupport 1 > Lowest fully-functional device speed is Full Speed (12Mbps) > bU1DevExitLat 1 micro seconds > bU2DevExitLat 500 micro seconds > can't get debug descriptor: Resource temporarily unavailable > Device Status: 0x0000 > (Bus Powered) > > > > _______________________________________________ > Alsa-user mailing list > Alsa-user@xxxxxxxxxxxxxxxxxxxxx > https://lists.sourceforge.net/lists/listinfo/alsa-user _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
