From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from smtp.nokia.com ([192.100.122.230]:60870 "EHLO mgw-mx03.nokia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751028Ab0HBOH1 (ORCPT ); Mon, 2 Aug 2010 10:07:27 -0400 From: "Matti J. Aaltonen" To: linux-media@vger.kernel.org, hverkuil@xs4all.nl, eduardo.valentin@nokia.com, mchehab@redhat.com Cc: "Matti J. Aaltonen" Subject: [PATCH v7 5/5] Documentation: v4l: Add hw_seek spacing and FM_RX class Date: Mon, 2 Aug 2010 17:06:43 +0300 Message-Id: <1280758003-16118-6-git-send-email-matti.j.aaltonen@nokia.com> In-Reply-To: <1280758003-16118-5-git-send-email-matti.j.aaltonen@nokia.com> References: <1280758003-16118-1-git-send-email-matti.j.aaltonen@nokia.com> <1280758003-16118-2-git-send-email-matti.j.aaltonen@nokia.com> <1280758003-16118-3-git-send-email-matti.j.aaltonen@nokia.com> <1280758003-16118-4-git-send-email-matti.j.aaltonen@nokia.com> <1280758003-16118-5-git-send-email-matti.j.aaltonen@nokia.com> Sender: linux-media-owner@vger.kernel.org List-ID: Add a couple of words about the spacing field in ithe HW seek struct and about the new FM RX control class. Signed-off-by: Matti J. Aaltonen --- Documentation/DocBook/v4l/controls.xml | 71 ++++++++++++++++++++ .../DocBook/v4l/vidioc-s-hw-freq-seek.xml | 10 ++- 2 files changed, 79 insertions(+), 2 deletions(-) diff --git a/Documentation/DocBook/v4l/controls.xml b/Documentation/DocBook/v4l/controls.xml index e1bdbb6..bba3f4d 100644 --- a/Documentation/DocBook/v4l/controls.xml +++ b/Documentation/DocBook/v4l/controls.xml @@ -2062,6 +2062,77 @@ manually or automatically if set to zero. Unit, range and step are driver-specif For more details about RDS specification, refer to document, from CENELEC. +
+ FM Tuner Control Reference + + The FM Tuner (FM_RX) class includes controls for common features of +devices that are capable of receiving FM transmissions. Currently this class includes a parameter +defining the FM radio band being used. + + + FM_RX Control IDs + + + + + + + + + + + ID + Type + Description + + + + + + V4L2_CID_FM_RX_CLASS  + class + The FM_RX class +descriptor. Calling &VIDIOC-QUERYCTRL; for this control will return a +description of this control class. + + + V4L2_CID_FM_RX_BAND  + integer + + Configures the FM radio +frequency range being used. Currently there are three bands in use, see Wikipedia. +Usually 87.5 to 108.0 MHz is used, or some portion thereof, with a few exceptions: +In Japan, the band 76-90 MHz is used and in the former Soviet republics +and some Eastern European countries, the older 65-74 MHz band, +referred also to as the OIRT band, is still used. + +The enum  v4l2_fm_rx_band defines possible values for the FM band. They are: + + + + + V4L2_FM_BAND_OTHER  + Frequencies from 87.5 to 108.0 MHz + + + V4L2_FM_BAND_JAPAN  + from 65 to 74 MHz + + + V4L2_FM_BAND_OIRT  + from 65 to 74 MHz + + + + + + + + +
+ +