Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932132AbaBVAuv (ORCPT ); Fri, 21 Feb 2014 19:50:51 -0500 Received: from qmta11.emeryville.ca.mail.comcast.net ([76.96.27.211]:47298 "EHLO qmta11.emeryville.ca.mail.comcast.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754870AbaBVAut (ORCPT ); Fri, 21 Feb 2014 19:50:49 -0500 From: Shuah Khan To: m.chehab@samsung.com Cc: Shuah Khan , linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, shuahkhan@gmail.com Subject: [RFC] [PATCH 5/6] media: em28xx-video - implement em28xx_ops: suspend/resume hooks Date: Fri, 21 Feb 2014 17:50:17 -0700 Message-Id: <428b784414ab17562ee30396bdd999885b3916ad.1393027856.git.shuah.kh@samsung.com> X-Mailer: git-send-email 1.8.3.2 In-Reply-To: References: In-Reply-To: References: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Implement em28xx_ops: suspend/resume hooks. em28xx usb driver will invoke em28xx_ops: suspend and resume hooks for all its extensions from its suspend() and resume() interfaces. Signed-off-by: Shuah Khan --- drivers/media/usb/em28xx/em28xx-video.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/drivers/media/usb/em28xx/em28xx-video.c b/drivers/media/usb/em28xx/em28xx-video.c index c3c9289..1df6750 100644 --- a/drivers/media/usb/em28xx/em28xx-video.c +++ b/drivers/media/usb/em28xx/em28xx-video.c @@ -1933,6 +1933,32 @@ static int em28xx_v4l2_fini(struct em28xx *dev) return 0; } +static int em28xx_v4l2_suspend(struct em28xx *dev) +{ + if (dev->is_audio_only) + return 0; + + if (!dev->has_video) + return 0; + + em28xx_info("Suspending video extension"); + em28xx_stop_urbs(dev); + return 0; +} + +static int em28xx_v4l2_resume(struct em28xx *dev) +{ + if (dev->is_audio_only) + return 0; + + if (!dev->has_video) + return 0; + + em28xx_info("Resuming video extension"); + /* what do we do here */ + return 0; +} + /* * em28xx_v4l2_close() * stops streaming and deallocates all resources allocated by the v4l2 @@ -2504,6 +2530,8 @@ static struct em28xx_ops v4l2_ops = { .name = "Em28xx v4l2 Extension", .init = em28xx_v4l2_init, .fini = em28xx_v4l2_fini, + .suspend = em28xx_v4l2_suspend, + .resume = em28xx_v4l2_resume, }; static int __init em28xx_video_register(void) -- 1.8.3.2 -- 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/