nfc: Fix RC-S380* needs zero-length packet

If sent packet size is wMaxPacketSize boundary, this device doesn't
answer. To fix this, we have to send zero-length packet in usb spec.

Signed-off-by: OGAWA Hirofumi <[email protected]>
Signed-off-by: Samuel Ortiz <[email protected]>
This commit is contained in:
OGAWA Hirofumi 2017-02-04 10:16:28 +09:00 • committed by Samuel Ortiz
commit 0ada076819

View file

@ -1540,6 +1540,7 @@ static int port100_probe(struct usb_interface *interface,
usb_fill_bulk_urb(dev->out_urb, dev->udev,
usb_sndbulkpipe(dev->udev, out_endpoint),
NULL, 0, port100_send_complete, dev);
dev->out_urb->transfer_flags = URB_ZERO_PACKET;
dev->skb_headroom = PORT100_FRAME_HEADER_LEN +
PORT100_COMM_RF_HEAD_MAX_LEN;