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

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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 <hirofumi@mail.parknet.co.jp>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
OGAWA Hirofumi 2017-02-04 10:16:28 +09:00 committed by Samuel Ortiz
parent 85a2566d70
commit 0ada076819
1 changed files with 1 additions and 0 deletions
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drivers/nfc/port100.c
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@ -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;