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Message-Id: <1445878509-12084-6-git-send-email-eu@felipetonello.com> Date: Mon, 26 Oct 2015 16:55:07 +0000 From: "Felipe F. Tonello" <eu@...ipetonello.com> To: linux-usb@...r.kernel.org Cc: linux-kernel@...r.kernel.org, Felipe Balbi <balbi@...com>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Andrzej Pietrasiewicz <andrzej.p@...sung.com>, Clemens Ladisch <clemens@...isch.de> Subject: [PATCH v4 5/7] usb: gadget: f_midi: set altsettings only for MIDIStreaming interface This avoids duplication of USB requests for OUT endpoint and re-enabling endpoints. Signed-off-by: Felipe F. Tonello <eu@...ipetonello.com> --- 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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