im using a Windows based environment with a Pentium
CPU as both Host and Target. I need to
write a device driver for USB
I need to know that how can we get information about
our USB device, how can we detect the
device, how can we configure it?
I have written a test code for getting device handle
by using the function "cyg_io_lookup"
but havent been successful in getting the device
handle
-Is it possible to get USB device handle using
'cyg_io_lookup' function?
-If No then which function should I use to get the
device handle.
static void simple_prog(CYG_ADDRESS data)
{
cyg_uint32 len = 1;
cyg_io_handle_t handle;
Cyg_ErrNo err;
unsigned char
data[]={0x80,0x06,0x02,USB_CONFIGURATION_DESCRIPTOR_TYPE,0x00,0x00,0x0009};
int index i=0;
err = cyg_io_lookup( "/dev/usb0c", &handle );
printf("USB %d\n",err);
if (ENOERR == err)
{
printf("Found /dev/haldiag. Writing
string....\n");
for(index=0;index<8;index++)
{
cyg_io_write( handle, data[index], &len );
printf("value sent to usb is:
%4x\n",data[index]);
}
}
}
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