static ssize_t
askUsbDevice (
BrailleDisplay *brl, unsigned char request,
void *buffer, size_t size
) {
return gioAskResource(brl->gioEndpoint,
MT_USB_CONTROL_RECIPIENT, MT_USB_CONTROL_TYPE,
request, 0, 0, buffer, size);
}
static int
askResource (
uint8_t request, uint16_t value, uint16_t index,
unsigned char *buffer, uint16_t size
) {
ssize_t result = gioAskResource(gioEndpoint, UsbControlRecipient_Endpoint, UsbControlType_Vendor,
request, value, index, buffer, size);
int ok = result != -1;
if (ok) {
logInputPacket(buffer, result);
}
return ok;
}