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
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.
2013/6/10 Greg KH <[email protected]>:
> On Mon, Jun 10, 2013 at 01:01:15AM +0430, Mahdi Razavi wrote:
>> Hi
>> I am mahdi.
>> i want to communicate with a radio over USB. creator of this radio
>> only support windows driver for communicate, but i want to have
>> connection in Linux.
>
> What device is this exactly? What is the output of 'lsusb -v' with it
> plugged in?
>
>> i have a SDK for windows and protocol specification of this device and
>> do some sniffing USB port on connection in windows.
>> may you help me how to have connection with this device in Linux?
>> or how can i write a driver for this device in Linux?
>
> What type of interface to userspace do you need for this device? Can it
> be a "dumb" serial-like interface that you send it AT modem commands?
> Or do you need to do other stuff with it?
>
> What about just using libusb to talk directly to it from your program
> from userspace, no kernel driver is needed for that.
>
> thanks,
>
> greg k-h
--
Best Regards
M.Razavi
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