Return-path: Received: from mail.parknet.co.jp ([210.171.160.6]:45947 "EHLO mail.parknet.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756379AbdACFsU (ORCPT ); Tue, 3 Jan 2017 00:48:20 -0500 From: OGAWA Hirofumi To: Samuel Ortiz Cc: Aloisio Almeida Jr , Lauro Ramos Venancio , linux-wireless@vger.kernel.org, Andrew Morton , linux-kernel@vger.kernel.org Subject: [PATCH resend 3/4] nfc: Fix RC-S380* needs zero-length packet References: <87ful0lmop.fsf@mail.parknet.co.jp> <87bmvolmnt.fsf@mail.parknet.co.jp> Date: Tue, 03 Jan 2017 14:48:17 +0900 In-Reply-To: <87bmvolmnt.fsf@mail.parknet.co.jp> (OGAWA Hirofumi's message of "Tue, 03 Jan 2017 14:47:50 +0900") Message-ID: <877f6clmn2.fsf_-_@mail.parknet.co.jp> (sfid-20170103_064845_558418_3D64F1E2) 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