int hp3900_read(scanner_t* scanner, void* buffer)
{
switch (scanner->connection) {
case CONNECTION_LIBUSB:
return libusb_control_msg((libusb_device_t*)scanner->internal_dev_ptr,
0xc0, 0x04, 0xe968, 0x0100, (void *)buffer, 0x0002);
break;
}
return -1;
}
static int samsung3200_read (scanner_t * scanner, void *bufdata, int bufsize)
{
int ret;
ret = libusb_control_msg ((libusb_device_t *) scanner->internal_dev_ptr,
USB_READ_DIR | USB_TYPE_VENDOR,
USB_READ_REQUEST, USB_READ_VALUE, USB_READ_INDEX,
bufdata, bufsize);
return ret;
}
int niash_control_msg(scanner_t* scanner, int requesttype, int request,
int value, int index, void* buffer, int bytecount)
{
switch (scanner->connection) {
case CONNECTION_LIBUSB:
return libusb_control_msg((libusb_device_t*)scanner->internal_dev_ptr,
requesttype, request, value, index, buffer,
bytecount);
break;
}
return -1;
}
