On Sat, 09 Jul 2011 22:38:04 +0200
Hans Petter Selasky <[email protected]> wrote:
>
> What does the device descriptor say about the number of configurations?
root@kg-v7# usbconfig -d 0.3 dump_device_desc
ugen0.3: <product 0x0011 vendor 0x0922> at usbus0, cfg=255 md=HOST spd=LOW
(1.5Mbps) pwr=ON
bLength = 0x0003
bDescriptorType = 0x0001
bcdUSB = 0x0209
bDeviceClass = 0x0021
bDeviceSubClass = 0x0000
bDeviceProtocol = 0x0001
bMaxPacketSize0 = 0x0001
idVendor = 0xc000
idProduct = 0x0901
bcdDevice = 0x0004
iManufacturer = 0x0000 <no string>
iProduct = 0x0002 <retrieving string failed>
iSerialNumber = 0x0003 <0>
bNumConfigurations = 0x0001
> If there are any configurations, could you dump them?
root@kg-v7# usbconfig -d 0.3 dump_curr_config_desc
ugen0.3: <product 0x0011 vendor 0x0922> at usbus0, cfg=255 md=HOST spd=LOW
(1.5Mbps) pwr=ON
root@kg-v7# usbconfig -d 0.3 dump_all_config_desc
ugen0.3: <product 0x0011 vendor 0x0922> at usbus0, cfg=255 md=HOST spd=LOW
(1.5Mbps) pwr=ON
Configuration index 0
bLength = 0x0009
bDescriptorType = 0x0002
wTotalLength = 0x0021
bNumInterfaces = 0x0001
bConfigurationValue = 0x0001
iConfiguration = 0x0000 <no string>
bmAttributes = 0x00c0
bMaxPower = 0x0001
Interface 0
bLength = 0x0009
bDescriptorType = 0x0004
bInterfaceNumber = 0x0000
bAlternateSetting = 0x0000
bNumEndpoints = 0x0002
bInterfaceClass = 0x0007
bInterfaceSubClass = 0x0001
bInterfaceProtocol = 0x0002
iInterface = 0x0000 <no string>
Endpoint 0
bLength = 0x0007
bDescriptorType = 0x0005
bEndpointAddress = 0x0081 <IN>
bmAttributes = 0x0002 <BULK>
wMaxPacketSize = 0x0008
bInterval = 0x0000
bRefresh = 0x0000
bSynchAddress = 0x0000
Endpoint 1
bLength = 0x0008
bDescriptorType = 0x0005
bEndpointAddress = 0x0002 <OUT>
bmAttributes = 0x0003 <INTERRUPT>
wMaxPacketSize = 0x0008
bInterval = 0x0004
bRefresh = 0x00ff
bSynchAddress = 0x0000
HTH
--
Torfinn
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