On Mon, Jun 10, 2013 at 10:25:26AM +0430, Mahdi Razavi wrote: > Hi > This is a Digital Radio which can report some data through USB to its > application. The output of lsudb : > Bus 002 Device 004: ID 238b:0a31 > Device Descriptor: > bLength 18 > bDescriptorType 1 > bcdUSB 2.00 > bDeviceClass 255 Vendor Specific Class Ick, a vendor-specific device :( > bDeviceSubClass 254 > bDeviceProtocol 254 > bMaxPacketSize0 8 > idVendor 0x238b > idProduct 0x0a31 > bcdDevice 0.00 > iManufacturer 1 > iProduct 2 > iSerial 0 > bNumConfigurations 1 > Configuration Descriptor: > bLength 9 > bDescriptorType 2 > wTotalLength 39 > bNumInterfaces 1 > bConfigurationValue 1 > iConfiguration 0 > bmAttributes 0xc0 > Self Powered > MaxPower 4mA > Interface Descriptor: > bLength 9 > bDescriptorType 4 > bInterfaceNumber 2 > bAlternateSetting 0 > bNumEndpoints 3 > bInterfaceClass 255 Vendor Specific Class > bInterfaceSubClass 255 Vendor Specific Subclass > bInterfaceProtocol 255 Vendor Specific Protocol > iInterface 5 > Endpoint Descriptor: > bLength 7 > bDescriptorType 5 > bEndpointAddress 0x84 EP 4 IN > bmAttributes 2 > Transfer Type Bulk > Synch Type None > Usage Type Data > wMaxPacketSize 0x0040 1x 64 bytes > bInterval 255 > Endpoint Descriptor: > bLength 7 > bDescriptorType 5 > bEndpointAddress 0x83 EP 3 IN > bmAttributes 3 > Transfer Type Interrupt > Synch Type None > Usage Type Data > wMaxPacketSize 0x0008 1x 8 bytes > bInterval 1 > Endpoint Descriptor: > bLength 7 > bDescriptorType 5 > bEndpointAddress 0x04 EP 4 OUT > bmAttributes 2 > Transfer Type Bulk > Synch Type None > Usage Type Data > wMaxPacketSize 0x0040 1x 64 bytes > bInterval 255 > > ---------------------------------- > output od dmesg: > [26785.637159] usb 2-2.1: new full-speed USB device number 11 using uhci_hcd > [26785.748010] usb 2-2.1: config 1 has an invalid interface number: 2 > but max is 0 > [26785.748018] usb 2-2.1: config 1 has no interface number 0 > [26785.759058] usb 2-2.1: New USB device found, idVendor=238b, idProduct=0a31 > [26785.759064] usb 2-2.1: New USB device strings: Mfr=1, Product=2, > SerialNumber=0 > [26785.759069] usb 2-2.1: Product: Digital Radio > [26785.759073] usb 2-2.1: Manufacturer: RIGOL Communications > > this device has a SDK for developing in windows but there isnt any in > Linux. i know protocol specification of message, and try sniffing on > windows verify protocol. > but when send a same data in Linux(with pyusb) to device dosent > response. i guess there is a initial handshake in driver layer between > device and OS. There really shouldn't be, but you might want to run Windows under kvm or vmware and snoop the data that way on the Linux side to determine the whole protocol being used. Good luck, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
