From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752517AbbJZQz2 (ORCPT ); Mon, 26 Oct 2015 12:55:28 -0400 Received: from mail-wi0-f173.google.com ([209.85.212.173]:35885 "EHLO mail-wi0-f173.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752411AbbJZQzX (ORCPT ); Mon, 26 Oct 2015 12:55:23 -0400 From: "Felipe F. Tonello" To: linux-usb@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Felipe Balbi , Greg Kroah-Hartman , Andrzej Pietrasiewicz , Clemens Ladisch Subject: [PATCH v4 5/7] usb: gadget: f_midi: set altsettings only for MIDIStreaming interface Date: Mon, 26 Oct 2015 16:55:07 +0000 Message-Id: <1445878509-12084-6-git-send-email-eu@felipetonello.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1445878509-12084-1-git-send-email-eu@felipetonello.com> References: <1445878509-12084-1-git-send-email-eu@felipetonello.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This avoids duplication of USB requests for OUT endpoint and re-enabling endpoints. Signed-off-by: Felipe F. Tonello --- drivers/usb/gadget/function/f_midi.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/usb/gadget/function/f_midi.c b/drivers/usb/gadget/function/f_midi.c index 0e9cdeb..a617df3 100644 --- a/drivers/usb/gadget/function/f_midi.c +++ b/drivers/usb/gadget/function/f_midi.c @@ -323,6 +323,10 @@ static int f_midi_set_alt(struct usb_function *f, unsigned intf, unsigned alt) unsigned i; int err; + /* We don't care if it is not MIDIStreaming interface */ + if (intf != ms_interface_desc.bInterfaceNumber) + return 0; + err = f_midi_start_ep(midi, f, midi->in_ep); if (err) return err; -- 2.1.4