Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753127AbbKJRxh (ORCPT ); Tue, 10 Nov 2015 12:53:37 -0500 Received: from mail-wm0-f50.google.com ([74.125.82.50]:35509 "EHLO mail-wm0-f50.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752725AbbKJRwR (ORCPT ); Tue, 10 Nov 2015 12:52:17 -0500 From: "Felipe F. Tonello" To: linux-usb@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Felipe Balbi , Greg Kroah-Hartman , Robert Baldyga , Clemens Ladisch Subject: [PATCH v5 6/7] usb: gadget: f_midi: set altsettings only for MIDIStreaming interface Date: Tue, 10 Nov 2015 17:52:08 +0000 Message-Id: <1447177929-22252-7-git-send-email-eu@felipetonello.com> X-Mailer: git-send-email 2.5.0 In-Reply-To: <1447177929-22252-1-git-send-email-eu@felipetonello.com> References: <1447177929-22252-1-git-send-email-eu@felipetonello.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1476 Lines: 45 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, 3 insertions(+), 1 deletion(-) diff --git a/drivers/usb/gadget/function/f_midi.c b/drivers/usb/gadget/function/f_midi.c index 76ea53c..615d632 100644 --- a/drivers/usb/gadget/function/f_midi.c +++ b/drivers/usb/gadget/function/f_midi.c @@ -75,6 +75,7 @@ struct f_midi { struct usb_ep *in_ep, *out_ep; struct snd_card *card; struct snd_rawmidi *rmidi; + u8 ms_id; struct snd_rawmidi_substream *in_substream[MAX_PORTS]; struct snd_rawmidi_substream *out_substream[MAX_PORTS]; @@ -322,7 +323,7 @@ static int f_midi_set_alt(struct usb_function *f, unsigned intf, unsigned alt) int err; /* For Control Device interface we do nothing */ - if (intf == 0) + if (intf != midi->ms_id) return 0; err = f_midi_start_ep(midi, f, midi->in_ep); @@ -730,6 +731,7 @@ static int f_midi_bind(struct usb_configuration *c, struct usb_function *f) goto fail; ms_interface_desc.bInterfaceNumber = status; ac_header_desc.baInterfaceNr[0] = status; + midi->ms_id = status; status = -ENODEV; -- 2.5.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/