From patchwork Tue Jul 20 11:16:02 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matti Aaltonen X-Patchwork-Id: 112991 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter.kernel.org (8.14.4/8.14.3) with ESMTP id o6KBGSg4003860 for ; Tue, 20 Jul 2010 11:16:36 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932165Ab0GTLQf (ORCPT ); Tue, 20 Jul 2010 07:16:35 -0400 Received: from smtp.nokia.com ([192.100.122.230]:43976 "EHLO mgw-mx03.nokia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932152Ab0GTLQc (ORCPT ); Tue, 20 Jul 2010 07:16:32 -0400 Received: from esebh105.NOE.Nokia.com (esebh105.ntc.nokia.com [172.21.138.211]) by mgw-mx03.nokia.com (Switch-3.3.3/Switch-3.3.3) with ESMTP id o6KBFvKB008800; Tue, 20 Jul 2010 14:16:20 +0300 Received: from esebh102.NOE.Nokia.com ([172.21.138.183]) by esebh105.NOE.Nokia.com with Microsoft SMTPSVC(6.0.3790.4675); Tue, 20 Jul 2010 14:16:19 +0300 Received: from mgw-da02.ext.nokia.com ([147.243.128.26]) by esebh102.NOE.Nokia.com over TLS secured channel with Microsoft SMTPSVC(6.0.3790.4675); Tue, 20 Jul 2010 14:16:18 +0300 Received: from localhost.localdomain (masi.nmp.nokia.com [172.22.211.19]) by mgw-da02.ext.nokia.com (Switch-3.3.3/Switch-3.3.3) with ESMTP id o6KBG2TN014045; Tue, 20 Jul 2010 14:16:13 +0300 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 v6 5/5] Documentation: v4l: Add hw_seek spacing and FM_RX class Date: Tue, 20 Jul 2010 14:16:02 +0300 Message-Id: <1279624562-14125-6-git-send-email-matti.j.aaltonen@nokia.com> X-Mailer: git-send-email 1.6.1.3 In-Reply-To: <1279624562-14125-5-git-send-email-matti.j.aaltonen@nokia.com> References: <1279624562-14125-1-git-send-email-matti.j.aaltonen@nokia.com> <1279624562-14125-2-git-send-email-matti.j.aaltonen@nokia.com> <1279624562-14125-3-git-send-email-matti.j.aaltonen@nokia.com> <1279624562-14125-4-git-send-email-matti.j.aaltonen@nokia.com> <1279624562-14125-5-git-send-email-matti.j.aaltonen@nokia.com> X-OriginalArrivalTime: 20 Jul 2010 11:16:18.0654 (UTC) FILETIME=[F9CF37E0:01CB27FC] X-Nokia-AV: Clean Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter.kernel.org [140.211.167.41]); Tue, 20 Jul 2010 11:16:36 +0000 (UTC) diff --git a/Documentation/DocBook/v4l/controls.xml b/Documentation/DocBook/v4l/controls.xml index 8408caa..e9512eb 100644 --- a/Documentation/DocBook/v4l/controls.xml +++ b/Documentation/DocBook/v4l/controls.xml @@ -2088,6 +2088,77 @@ 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 + + + + + + + + +
+ +