El Mar 30 Jul 2002 20:18, Martin Langer escribió:
> The only strange thing I found are the unknown parts of the lsusb output
> (broken descriptor?) and the impossible module reload = segfault.
>
These 'unknown descriptor' lines at lsusb output are jack descriptors and MS
endpoint descriptors, as required by the specification documents (see
midi10.pdf, pages 39-43). The lsusb utility should be updated.
I will try to manually decode that descriptors.
>
> Bus 001 Device 002: ID 0a4d:008e
> Language IDs: none (invalid length string descriptor bf; len=0)
> Device Descriptor:
> bLength 18
> bDescriptorType 1
> bcdUSB 1.00
> bDeviceClass 1 Audio
> bDeviceSubClass 0
> bDeviceProtocol 0
> bMaxPacketSize0 64
> idVendor 0x0a4d
> idProduct 0x008e
> bcdDevice 2.00
> iManufacturer 1
> iProduct 2
> iSerial 0
> bNumConfigurations 1
> Configuration Descriptor:
> bLength 9
> bDescriptorType 2
> wTotalLength 101
> bNumInterfaces 2
> bConfigurationValue 1
> iConfiguration 3
> bmAttributes 0xc0
> Self Powered
> MaxPower 0mA
> 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 9
> bDescriptorType 36
> bDescriptorSubtype 1 (HEADER)
> bcdADC 1.00
> wTotalLength 9
> bInCollection 1
> baInterfaceNr( 0) 1
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 1
> bAlternateSetting 0
> bNumEndpoints 2
> bInterfaceClass 1 Audio
> bInterfaceSubClass 3 Non Streaming
> bInterfaceProtocol 0
> iInterface 0
> unknown descriptor type: 07 24 01 00 01 41 00
Class Specific Interface Descriptor
bLength 7
bDescriptorType 0x24 (CS_INTERFACE)
bDescriptorSubtype 1 header
bcdADC 1.0
wTotalLength 65
> unknown descriptor type: 06 24 02 01 01 00
MIDI Jack Descriptor
bLength 6
bDescriptorType 0x24
bDescriptorSubtype 2 IN
bJackType 1 EMBEDDED
bJackID 1
> unknown descriptor type: 06 24 02 02 02 00
MIDI Jack Descriptor
bLength 6
bDescriptorType 0x24
bDescriptorSubtype 2 IN
bJackType 2 EXTERNAL
bJackID 2
> unknown descriptor type: 09 24 03 01 03 01 02 01 00
MIDI Jack Descriptor
bLength 9
bDescriptorType 0x24
bDescriptorSubtype 3 OUT
bJackType 1 EMBEDDED
bJackID 3
bNrInputPins 1
BaSourceID 2
BaSourcePin 1
> unknown descriptor type: 09 24 03 02 04 01 01 01 00
MIDI Jack Descriptor
bLength 9
bDescriptorType 0x24
bDescriptorSubtype 3 OUT
bJackType 2 EXTERNAL
bJackID 4
bNrInputPins 1
BaSourceID 1
BaSourcePin 1
> Endpoint Descriptor:
> bLength 9
> bDescriptorType 5
> bEndpointAddress 0x81 EP 1 IN
> bmAttributes 2
> Transfer Type Bulk
> Synch Type none
> wMaxPacketSize 64
> bInterval 0
> bRefresh 0
> bSynchAddress 0
> unknown descriptor type: 05 25 01 01 03
MIDIStreaming Bulk Endpoint Descriptor
bLength 5
bDescriptorType 0x25 (CS_ENDPOINT)
bDescriptorSubtype 1 MS_GENERAL
bNumEmbMIDIJack 1
BaAssocJackID 3
> Endpoint Descriptor:
> bLength 9
> bDescriptorType 5
> bEndpointAddress 0x02 EP 2 OUT
> bmAttributes 2
> Transfer Type Bulk
> Synch Type none
> wMaxPacketSize 64
> bInterval 0
> bRefresh 0
> bSynchAddress 0
> unknown descriptor type: 05 25 01 01 01
MIDIStreaming Bulk Endpoint Descriptor
bLength 5
bDescriptorType 0x25 (CS_ENDPOINT)
bDescriptorSubtype 1 MS_GENERAL
bNumEmbMIDIJack 1
BaAssocJackID 1
> Language IDs: none (invalid length string descriptor bf; len=0)
Regards,
Pedro
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