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From: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
To: Samuel Ortiz <sameo@linux.intel.com>
Cc: Aloisio Almeida Jr <aloisio.almeida@openbossa.org>,
	Lauro Ramos Venancio <lauro.venancio@openbossa.org>,
	linux-wireless@vger.kernel.org,
	Andrew Morton <akpm@linux-foundation.org>,
	linux-kernel@vger.kernel.org
Subject: [PATCH resend 3/4] nfc: Fix RC-S380* needs zero-length packet
Date: Tue, 03 Jan 2017 14:48:17 +0900	[thread overview]
Message-ID: <877f6clmn2.fsf_-_@mail.parknet.co.jp> (raw)
In-Reply-To: <87bmvolmnt.fsf@mail.parknet.co.jp> (OGAWA Hirofumi's message of "Tue, 03 Jan 2017 14:47:50 +0900")


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>
---

 drivers/nfc/port100.c |    1 +
 1 file changed, 1 insertion(+)

diff -puN drivers/nfc/port100.c~nfc-need-zero-packet drivers/nfc/port100.c
--- linux-ibmpc/drivers/nfc/port100.c~nfc-need-zero-packet	2016-12-31 18:27:14.814753508 +0900
+++ linux-ibmpc-hirofumi/drivers/nfc/port100.c	2016-12-31 18:32:12.928334607 +0900
@@ -1540,6 +1540,7 @@ static int port100_probe(struct usb_inte
 	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;
_

-- 
OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>

  reply	other threads:[~2017-01-03  5:48 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-03  5:47 [PATCH resend 1/4] nfc: Add support RC-S380P to port100 OGAWA Hirofumi
2017-01-03  5:47 ` [PATCH resend 2/4] nfc: Send same info for both of NFC_CMD_GET_DEVICE and NFC_EVENT_DEVICE_ADDED OGAWA Hirofumi
2017-01-03  5:48   ` OGAWA Hirofumi [this message]
2017-01-03  5:48     ` [PATCH 4/4] nfc: Fix hangup of RC-S380* in port100_send_ack() OGAWA Hirofumi
  -- strict thread matches above, loose matches on Subject: below --
2017-02-04  1:15 [PATCH resend 1/4] nfc: Add support RC-S380P to port100 OGAWA Hirofumi
2017-02-04  1:15 ` [PATCH resend 2/4] nfc: Send same info for both of NFC_CMD_GET_DEVICE and NFC_EVENT_DEVICE_ADDED OGAWA Hirofumi
2017-02-04  1:16   ` [PATCH resend 3/4] nfc: Fix RC-S380* needs zero-length packet OGAWA Hirofumi

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