Return-path: Received: from mail.parknet.co.jp ([210.171.160.6]:60134 "EHLO mail.parknet.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751582AbdBDBQa (ORCPT ); Fri, 3 Feb 2017 20:16:30 -0500 From: OGAWA Hirofumi To: Samuel Ortiz Cc: Aloisio Almeida Jr , Lauro Ramos Venancio , linux-wireless@vger.kernel.org, Andrew Morton , Linus Torvalds , linux-kernel@vger.kernel.org, linux-nfc@ml01.01.org Subject: [PATCH resend 3/4] nfc: Fix RC-S380* needs zero-length packet References: <871sveu579.fsf@mail.parknet.co.jp> <87wpd6sqlw.fsf@mail.parknet.co.jp> Date: Sat, 04 Feb 2017 10:16:28 +0900 In-Reply-To: <87wpd6sqlw.fsf@mail.parknet.co.jp> (OGAWA Hirofumi's message of "Sat, 04 Feb 2017 10:15:55 +0900") Message-ID: <87shnusqkz.fsf_-_@mail.parknet.co.jp> (sfid-20170204_021648_510644_DB1E43E8) MIME-Version: 1.0 Content-Type: text/plain Sender: linux-wireless-owner@vger.kernel.org List-ID: 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 --- 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