From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-wy0-f174.google.com ([74.125.82.174]:40756 "EHLO mail-wy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752951Ab1KLP4h (ORCPT ); Sat, 12 Nov 2011 10:56:37 -0500 Received: by mail-wy0-f174.google.com with SMTP id 15so4693629wyh.19 for ; Sat, 12 Nov 2011 07:56:37 -0800 (PST) Message-ID: <4ebe9734.d4c7e30a.6b0e.ffff9414@mx.google.com> Subject: [PATCH 7/7] af9013 empty buffer overflow command. From: Malcolm Priestley To: linux-media@vger.kernel.org Date: Sat, 12 Nov 2011 15:56:34 +0000 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Mime-Version: 1.0 Sender: linux-media-owner@vger.kernel.org List-ID: This command is present in other Afatech devices zeroing bit 7 seems to force streaming output even if it isn't one. I was considering timing it out, but it seems to have no harmful effect on streaming output. Signed-off-by: Malcolm Priestley --- drivers/media/dvb/frontends/af9013.c | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-) diff --git a/drivers/media/dvb/frontends/af9013.c b/drivers/media/dvb/frontends/af9013.c index 6a5b40c..fbf6bca 100644 --- a/drivers/media/dvb/frontends/af9013.c +++ b/drivers/media/dvb/frontends/af9013.c @@ -1094,7 +1094,10 @@ static int af9013_read_status(struct dvb_frontend *fe, fe_status_t *status) } ret = af9013_update_statistics(fe); - + if (ret) + goto error; + /* Force empty stream buffer if overflow */ + ret = af9013_write_reg_bits(state, 0xd500, 7, 1, 0); error: return ret; } -- 1.7.5.4