ネットの記事などでいろいろあるって話ですが、HARDOFFで二台目が330円で手に入ったので、ディスクリプタを比較してみます。
名無しの一台目
ugen1.2: <MACROSILICON AV TO USB2.0> at usbus1, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=ON (500mA)
bLength = 0x0012
bDescriptorType = 0x0001
bcdUSB = 0x0200
bDeviceClass = 0x00ef <Miscellaneous device>
bDeviceSubClass = 0x0002
bDeviceProtocol = 0x0001
bMaxPacketSize0 = 0x0040
idVendor = 0x534d
idProduct = 0x0021
bcdDevice = 0x2101
iManufacturer = 0x0001 <MACROSILICON>
iProduct = 0x0002 <AV TO USB2.0>
iSerialNumber = 0x0003 <20200909>
bNumConfigurations = 0x0001
Configuration index 0
bLength = 0x0009
bDescriptorType = 0x0002
wTotalLength = 0x0261
bNumInterfaces = 0x0005
bConfigurationValue = 0x0001
iConfiguration = 0x0000 <no string>
bmAttributes = 0x0080
bMaxPower = 0x00fa
Additional Descriptor
bLength = 0x08
bDescriptorType = 0x0b
bDescriptorSubType = 0x00
RAW dump:
0x00 | 0x08, 0x0b, 0x00, 0x02, 0x0e, 0x03, 0x00, 0x02
Interface 0
bLength = 0x0009
bDescriptorType = 0x0004
bInterfaceNumber = 0x0000
bAlternateSetting = 0x0000
bNumEndpoints = 0x0000
bInterfaceClass = 0x000e <Video device>
bInterfaceSubClass = 0x0001
bInterfaceProtocol = 0x0000
iInterface = 0x0002 <AV TO USB2.0>
Additional Descriptor
bLength = 0x0d
bDescriptorType = 0x24
bDescriptorSubType = 0x01
RAW dump:
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0x08 | 0x6c, 0xdc, 0x02, 0x01, 0x01
Additional Descriptor
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bDescriptorSubType = 0x02
RAW dump:
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0x08 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x00,
0x10 | 0x00, 0x00
Additional Descriptor
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bDescriptorSubType = 0x05
RAW dump:
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0x08 | 0x0f, 0x01, 0x00
Additional Descriptor
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bDescriptorType = 0x24
bDescriptorSubType = 0x06
RAW dump:
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0x08 | 0x11, 0x63, 0x2e, 0x4a, 0xba, 0x2c, 0x68, 0x90,
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0x18 | 0x01, 0x00
Additional Descriptor
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bDescriptorType = 0x24
bDescriptorSubType = 0x03
RAW dump:
0x00 | 0x09, 0x24, 0x03, 0x04, 0x01, 0x01, 0x00, 0x03,
0x08 | 0x00
Interface 1
bLength = 0x0009
bDescriptorType = 0x0004
bInterfaceNumber = 0x0001
bAlternateSetting = 0x0000
bNumEndpoints = 0x0000
bInterfaceClass = 0x000e <Video device>
bInterfaceSubClass = 0x0002
bInterfaceProtocol = 0x0000
iInterface = 0x0000 <no string>
Additional Descriptor
bLength = 0x0f
bDescriptorType = 0x24
bDescriptorSubType = 0x01
RAW dump:
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0x08 | 0x04, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00
Additional Descriptor
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RAW dump:
0x00 | 0x0b, 0x24, 0x06, 0x01, 0x04, 0x01, 0x02, 0x00,
0x08 | 0x00, 0x00, 0x00
Additional Descriptor
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bDescriptorType = 0x24
bDescriptorSubType = 0x07
RAW dump:
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0x28 | 0x1e, 0x00
Additional Descriptor
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RAW dump:
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0x28 | 0x1e, 0x00
Additional Descriptor
bLength = 0x2a
bDescriptorType = 0x24
bDescriptorSubType = 0x07
RAW dump:
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0x20 | 0x07, 0x00, 0x40, 0x42, 0x0f, 0x00, 0x80, 0x84,
0x28 | 0x1e, 0x00
Additional Descriptor
bLength = 0x2a
bDescriptorType = 0x24
bDescriptorSubType = 0x07
RAW dump:
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0x28 | 0x1e, 0x00
Additional Descriptor
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bDescriptorSubType = 0x0d
RAW dump:
0x00 | 0x06, 0x24, 0x0d, 0x01, 0x01, 0x04
Additional Descriptor
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bDescriptorType = 0x24
bDescriptorSubType = 0x04
RAW dump:
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0x18 | 0x00, 0x00, 0x00
Additional Descriptor
bLength = 0x2a
bDescriptorType = 0x24
bDescriptorSubType = 0x05
RAW dump:
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0x28 | 0x1e, 0x00
Additional Descriptor
bLength = 0x2a
bDescriptorType = 0x24
bDescriptorSubType = 0x05
RAW dump:
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0x20 | 0x07, 0x00, 0x40, 0x42, 0x0f, 0x00, 0x80, 0x84,
0x28 | 0x1e, 0x00
Additional Descriptor
bLength = 0x06
bDescriptorType = 0x24
bDescriptorSubType = 0x0d
RAW dump:
0x00 | 0x06, 0x24, 0x0d, 0x01, 0x01, 0x04
Interface 1 Alt 1
bLength = 0x0009
bDescriptorType = 0x0004
bInterfaceNumber = 0x0001
bAlternateSetting = 0x0001
bNumEndpoints = 0x0001
bInterfaceClass = 0x000e <Video device>
bInterfaceSubClass = 0x0002
bInterfaceProtocol = 0x0000
iInterface = 0x0000 <no string>
Endpoint 0
bLength = 0x0007
bDescriptorType = 0x0005
bEndpointAddress = 0x0083 <IN>
bmAttributes = 0x0005 <ASYNC-ISOCHRONOUS>
wMaxPacketSize = 0x0320
bInterval = 0x0001
bRefresh = 0x0000
bSynchAddress = 0x0000
Interface 1 Alt 2
bLength = 0x0009
bDescriptorType = 0x0004
bInterfaceNumber = 0x0001
bAlternateSetting = 0x0002
bNumEndpoints = 0x0001
bInterfaceClass = 0x000e <Video device>
bInterfaceSubClass = 0x0002
bInterfaceProtocol = 0x0000
iInterface = 0x0000 <no string>
Endpoint 0
bLength = 0x0007
bDescriptorType = 0x0005
bEndpointAddress = 0x0083 <IN>
bmAttributes = 0x0005 <ASYNC-ISOCHRONOUS>
wMaxPacketSize = 0x0c00
bInterval = 0x0001
bRefresh = 0x0000
bSynchAddress = 0x0000
Interface 1 Alt 3
bLength = 0x0009
bDescriptorType = 0x0004
bInterfaceNumber = 0x0001
bAlternateSetting = 0x0003
bNumEndpoints = 0x0001
bInterfaceClass = 0x000e <Video device>
bInterfaceSubClass = 0x0002
bInterfaceProtocol = 0x0000
iInterface = 0x0000 <no string>
Endpoint 0
bLength = 0x0007
bDescriptorType = 0x0005
bEndpointAddress = 0x0083 <IN>
bmAttributes = 0x0005 <ASYNC-ISOCHRONOUS>
wMaxPacketSize = 0x1400
bInterval = 0x0001
bRefresh = 0x0000
bSynchAddress = 0x0000
Additional Descriptor
bLength = 0x08
bDescriptorType = 0x0b
bDescriptorSubType = 0x02
RAW dump:
0x00 | 0x08, 0x0b, 0x02, 0x02, 0x01, 0x01, 0x00, 0x04
Interface 2
bLength = 0x0009
bDescriptorType = 0x0004
bInterfaceNumber = 0x0002
bAlternateSetting = 0x0000
bNumEndpoints = 0x0000
bInterfaceClass = 0x0001 <Audio device>
bInterfaceSubClass = 0x0001
bInterfaceProtocol = 0x0000
iInterface = 0x0004 <AV TO USB2.0>
Additional Descriptor
bLength = 0x09
bDescriptorType = 0x24
bDescriptorSubType = 0x01
RAW dump:
0x00 | 0x09, 0x24, 0x01, 0x00, 0x01, 0x26, 0x00, 0x01,
0x08 | 0x03
Additional Descriptor
bLength = 0x0c
bDescriptorType = 0x24
bDescriptorSubType = 0x02
RAW dump:
0x00 | 0x0c, 0x24, 0x02, 0x01, 0x02, 0x06, 0x00, 0x02,
0x08 | 0x03, 0x00, 0x00, 0x00
Additional Descriptor
bLength = 0x08
bDescriptorType = 0x24
bDescriptorSubType = 0x06
RAW dump:
0x00 | 0x08, 0x24, 0x06, 0x02, 0x01, 0x01, 0x01, 0x00
Additional Descriptor
bLength = 0x09
bDescriptorType = 0x24
bDescriptorSubType = 0x03
RAW dump:
0x00 | 0x09, 0x24, 0x03, 0x03, 0x01, 0x01, 0x00, 0x02,
0x08 | 0x00
Interface 3
bLength = 0x0009
bDescriptorType = 0x0004
bInterfaceNumber = 0x0003
bAlternateSetting = 0x0000
bNumEndpoints = 0x0000
bInterfaceClass = 0x0001 <Audio device>
bInterfaceSubClass = 0x0002
bInterfaceProtocol = 0x0000
iInterface = 0x0004 <AV TO USB2.0>
Interface 3 Alt 1
bLength = 0x0009
bDescriptorType = 0x0004
bInterfaceNumber = 0x0003
bAlternateSetting = 0x0001
bNumEndpoints = 0x0001
bInterfaceClass = 0x0001 <Audio device>
bInterfaceSubClass = 0x0002
bInterfaceProtocol = 0x0000
iInterface = 0x0004 <AV TO USB2.0>
Additional Descriptor
bLength = 0x07
bDescriptorType = 0x24
bDescriptorSubType = 0x01
RAW dump:
0x00 | 0x07, 0x24, 0x01, 0x03, 0x00, 0x01, 0x00
Additional Descriptor
bLength = 0x0b
bDescriptorType = 0x24
bDescriptorSubType = 0x02
RAW dump:
0x00 | 0x0b, 0x24, 0x02, 0x01, 0x01, 0x02, 0x10, 0x01,
0x08 | 0x00, 0x77, 0x01
Endpoint 0
bLength = 0x0009
bDescriptorType = 0x0005
bEndpointAddress = 0x0082 <IN>
bmAttributes = 0x0005 <ASYNC-ISOCHRONOUS>
wMaxPacketSize = 0x0100
bInterval = 0x0004
bRefresh = 0x0000
bSynchAddress = 0x0000
Additional Descriptor
bLength = 0x07
bDescriptorType = 0x25
bDescriptorSubType = 0x01
RAW dump:
0x00 | 0x07, 0x25, 0x01, 0x00, 0x00, 0x00, 0x00
Interface 4
bLength = 0x0009
bDescriptorType = 0x0004
bInterfaceNumber = 0x0004
bAlternateSetting = 0x0000
bNumEndpoints = 0x0001
bInterfaceClass = 0x0003 <HID device>
bInterfaceSubClass = 0x0000
bInterfaceProtocol = 0x0000
iInterface = 0x0000 <no string>
Additional Descriptor
bLength = 0x09
bDescriptorType = 0x21
bDescriptorSubType = 0x10
RAW dump:
0x00 | 0x09, 0x21, 0x10, 0x01, 0x21, 0x01, 0x22, 0x17,
0x08 | 0x00
Endpoint 0
bLength = 0x0007
bDescriptorType = 0x0005
bEndpointAddress = 0x0081 <IN>
bmAttributes = 0x0003 <INTERRUPT>
wMaxPacketSize = 0x0004
bInterval = 0x0010
bRefresh = 0x0000
bSynchAddress = 0x0000
二台目
ugen1.2: <vendor 0x534d AV TO USB2.0> at usbus1, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=ON (500mA)
bLength = 0x0012
bDescriptorType = 0x0001
bcdUSB = 0x0200
bDeviceClass = 0x00ef <Miscellaneous device>
bDeviceSubClass = 0x0002
bDeviceProtocol = 0x0001
bMaxPacketSize0 = 0x0040
idVendor = 0x534d
idProduct = 0x0021
bcdDevice = 0x0121
iManufacturer = 0x0001 <retrieving string failed>
iProduct = 0x0002 <AV TO USB2.0>
iSerialNumber = 0x0000 <no string>
bNumConfigurations = 0x0001
Configuration index 0
bLength = 0x0009
bDescriptorType = 0x0002
wTotalLength = 0x01bf
bNumInterfaces = 0x0004
bConfigurationValue = 0x0001
iConfiguration = 0x0000 <no string>
bmAttributes = 0x0080
bMaxPower = 0x00fa
Additional Descriptor
bLength = 0x08
bDescriptorType = 0x0b
bDescriptorSubType = 0x00
RAW dump:
0x00 | 0x08, 0x0b, 0x00, 0x02, 0x0e, 0x03, 0x00, 0x00
Interface 0
bLength = 0x0009
bDescriptorType = 0x0004
bInterfaceNumber = 0x0000
bAlternateSetting = 0x0000
bNumEndpoints = 0x0000
bInterfaceClass = 0x000e <Video device>
bInterfaceSubClass = 0x0001
bInterfaceProtocol = 0x0000
iInterface = 0x0000 <no string>
Additional Descriptor
bLength = 0x0d
bDescriptorType = 0x24
bDescriptorSubType = 0x01
RAW dump:
0x00 | 0x0d, 0x24, 0x01, 0x00, 0x01, 0x33, 0x00, 0x60,
0x08 | 0xfe, 0xcd, 0x00, 0x01, 0x01
Additional Descriptor
bLength = 0x12
bDescriptorType = 0x24
bDescriptorSubType = 0x02
RAW dump:
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0x08 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x00,
0x10 | 0x00, 0x00
Additional Descriptor
bLength = 0x0b
bDescriptorType = 0x24
bDescriptorSubType = 0x05
RAW dump:
0x00 | 0x0b, 0x24, 0x05, 0x02, 0x01, 0x00, 0x00, 0x02,
0x08 | 0x2f, 0x00, 0x00
Additional Descriptor
bLength = 0x09
bDescriptorType = 0x24
bDescriptorSubType = 0x03
RAW dump:
0x00 | 0x09, 0x24, 0x03, 0x03, 0x01, 0x01, 0x00, 0x02,
0x08 | 0x00
Interface 1
bLength = 0x0009
bDescriptorType = 0x0004
bInterfaceNumber = 0x0001
bAlternateSetting = 0x0000
bNumEndpoints = 0x0000
bInterfaceClass = 0x000e <Video device>
bInterfaceSubClass = 0x0002
bInterfaceProtocol = 0x0000
iInterface = 0x0000 <no string>
Additional Descriptor
bLength = 0x0e
bDescriptorType = 0x24
bDescriptorSubType = 0x01
RAW dump:
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0x08 | 0x03, 0x00, 0x00, 0x00, 0x01, 0x00
Additional Descriptor
bLength = 0x1b
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RAW dump:
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0x08 | 0x32, 0x00, 0x00, 0x10, 0x00, 0x80, 0x00, 0x00,
0x10 | 0xaa, 0x00, 0x38, 0x9b, 0x71, 0x10, 0x01, 0x00,
0x18 | 0x00, 0x25, 0x00
Additional Descriptor
bLength = 0x26
bDescriptorType = 0x24
bDescriptorSubType = 0x05
RAW dump:
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0x08 | 0x01, 0x00, 0x40, 0xe3, 0x09, 0x00, 0x40, 0xe3,
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0x18 | 0x00, 0x00, 0x15, 0x16, 0x05, 0x00, 0x15, 0x16,
0x20 | 0x05, 0x00, 0x00, 0x00, 0x00, 0x00
Additional Descriptor
bLength = 0x26
bDescriptorType = 0x24
bDescriptorSubType = 0x05
RAW dump:
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0x08 | 0x02, 0x00, 0x80, 0xdd, 0x0b, 0x00, 0x80, 0xdd,
0x10 | 0x0b, 0x00, 0xa8, 0x0c, 0x00, 0x80, 0x1a, 0x06,
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0x20 | 0x06, 0x00, 0x00, 0x00, 0x00, 0x00
Additional Descriptor
bLength = 0x26
bDescriptorType = 0x24
bDescriptorSubType = 0x05
RAW dump:
0x00 | 0x26, 0x24, 0x05, 0x03, 0x00, 0x80, 0x02, 0xe0,
0x08 | 0x01, 0x00, 0x00, 0xca, 0x08, 0x00, 0x00, 0xca,
0x10 | 0x08, 0x00, 0x60, 0x09, 0x00, 0x15, 0x16, 0x05,
0x18 | 0x00, 0x00, 0x15, 0x16, 0x05, 0x00, 0x15, 0x16,
0x20 | 0x05, 0x00, 0x00, 0x00, 0x00, 0x00
Additional Descriptor
bLength = 0x26
bDescriptorType = 0x24
bDescriptorSubType = 0x05
RAW dump:
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0x08 | 0x00, 0x00, 0x80, 0x32, 0x02, 0x00, 0x80, 0x32,
0x10 | 0x02, 0x00, 0x58, 0x02, 0x00, 0x15, 0x16, 0x05,
0x18 | 0x00, 0x00, 0x15, 0x16, 0x05, 0x00, 0x15, 0x16,
0x20 | 0x05, 0x00, 0x00, 0x00, 0x00, 0x00
Additional Descriptor
bLength = 0x26
bDescriptorType = 0x24
bDescriptorSubType = 0x05
RAW dump:
0x00 | 0x26, 0x24, 0x05, 0x05, 0x00, 0xa0, 0x00, 0x78,
0x08 | 0x00, 0x00, 0xa0, 0x8c, 0x00, 0x00, 0xa0, 0x8c,
0x10 | 0x00, 0x00, 0x96, 0x00, 0x00, 0x15, 0x16, 0x05,
0x18 | 0x00, 0x00, 0x15, 0x16, 0x05, 0x00, 0x15, 0x16,
0x20 | 0x05, 0x00, 0x00, 0x00, 0x00, 0x00
Additional Descriptor
bLength = 0x06
bDescriptorType = 0x24
bDescriptorSubType = 0x0d
RAW dump:
0x00 | 0x06, 0x24, 0x0d, 0x00, 0x00, 0x00
Interface 1 Alt 1
bLength = 0x0009
bDescriptorType = 0x0004
bInterfaceNumber = 0x0001
bAlternateSetting = 0x0001
bNumEndpoints = 0x0001
bInterfaceClass = 0x000e <Video device>
bInterfaceSubClass = 0x0002
bInterfaceProtocol = 0x0000
iInterface = 0x0000 <no string>
Endpoint 0
bLength = 0x0007
bDescriptorType = 0x0005
bEndpointAddress = 0x0083 <IN>
bmAttributes = 0x0005 <ASYNC-ISOCHRONOUS>
wMaxPacketSize = 0x1400
bInterval = 0x0001
bRefresh = 0x0000
bSynchAddress = 0x0000
Additional Descriptor
bLength = 0x08
bDescriptorType = 0x0b
bDescriptorSubType = 0x02
RAW dump:
0x00 | 0x08, 0x0b, 0x02, 0x02, 0x01, 0x01, 0x00, 0x00
Interface 2
bLength = 0x0009
bDescriptorType = 0x0004
bInterfaceNumber = 0x0002
bAlternateSetting = 0x0000
bNumEndpoints = 0x0000
bInterfaceClass = 0x0001 <Audio device>
bInterfaceSubClass = 0x0001
bInterfaceProtocol = 0x0000
iInterface = 0x0000 <no string>
Additional Descriptor
bLength = 0x09
bDescriptorType = 0x24
bDescriptorSubType = 0x01
RAW dump:
0x00 | 0x09, 0x24, 0x01, 0x00, 0x01, 0x27, 0x00, 0x01,
0x08 | 0x03
Additional Descriptor
bLength = 0x0c
bDescriptorType = 0x24
bDescriptorSubType = 0x02
RAW dump:
0x00 | 0x0c, 0x24, 0x02, 0x01, 0x01, 0x02, 0x00, 0x02,
0x08 | 0x03, 0x00, 0x00, 0x00
Additional Descriptor
bLength = 0x09
bDescriptorType = 0x24
bDescriptorSubType = 0x06
RAW dump:
0x00 | 0x09, 0x24, 0x06, 0x02, 0x01, 0x02, 0x03, 0x00,
0x08 | 0x00
Additional Descriptor
bLength = 0x09
bDescriptorType = 0x24
bDescriptorSubType = 0x03
RAW dump:
0x00 | 0x09, 0x24, 0x03, 0x03, 0x01, 0x01, 0x00, 0x02,
0x08 | 0x00
Interface 3
bLength = 0x0009
bDescriptorType = 0x0004
bInterfaceNumber = 0x0003
bAlternateSetting = 0x0000
bNumEndpoints = 0x0000
bInterfaceClass = 0x0001 <Audio device>
bInterfaceSubClass = 0x0002
bInterfaceProtocol = 0x0000
iInterface = 0x0000 <no string>
Interface 3 Alt 1
bLength = 0x0009
bDescriptorType = 0x0004
bInterfaceNumber = 0x0003
bAlternateSetting = 0x0001
bNumEndpoints = 0x0001
bInterfaceClass = 0x0001 <Audio device>
bInterfaceSubClass = 0x0002
bInterfaceProtocol = 0x0000
iInterface = 0x0000 <no string>
Additional Descriptor
bLength = 0x07
bDescriptorType = 0x24
bDescriptorSubType = 0x01
RAW dump:
0x00 | 0x07, 0x24, 0x01, 0x03, 0x00, 0x01, 0x00
Additional Descriptor
bLength = 0x0b
bDescriptorType = 0x24
bDescriptorSubType = 0x02
RAW dump:
0x00 | 0x0b, 0x24, 0x02, 0x01, 0x02, 0x02, 0x10, 0x01,
0x08 | 0x80, 0xbb, 0x00
Endpoint 0
bLength = 0x0009
bDescriptorType = 0x0005
bEndpointAddress = 0x0082 <IN>
bmAttributes = 0x0001 <ISOCHRONOUS>
wMaxPacketSize = 0x0100
bInterval = 0x0004
bRefresh = 0x0000
bSynchAddress = 0x0000
Additional Descriptor
bLength = 0x07
bDescriptorType = 0x25
bDescriptorSubType = 0x01
RAW dump:
0x00 | 0x07, 0x25, 0x01, 0x00, 0x00, 0x00, 0x00
VIDやPIDは同じですが、まったく違います。