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authorLinus Torvalds <torvalds@linux-foundation.org>2012-07-30 19:03:41 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-07-30 19:03:41 -0700
commit6df419e45d71b8d9a0de8e92a1212bbea460f0e0 (patch)
treec0902a96353391400818fe8b7adf11493b56935a /Documentation/DocBook/media/v4l/vidioc-s-hw-freq-seek.xml
parent27c1ee3f929555b71fa39ec0d81a7e7185de1b16 (diff)
parentc893e7c64e36087dceb4662917976a81d1754fc0 (diff)
Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab: "This is the first part of the media patches for v3.6. This patch series contain: - new DVB frontend: rtl2832 - new video drivers: adv7393 - some unused files got removed - a selection API cleanup between V4L2 and V4L2 subdev API's - a major redesign at v4l-ioctl2, in order to clean it up - several driver fixes and improvements." * 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (174 commits) v4l: Export v4l2-common.h in include/linux/Kbuild media: Revert "[media] Terratec Cinergy S2 USB HD Rev.2" [media] media: Use pr_info not homegrown pr_reg macro [media] Terratec Cinergy S2 USB HD Rev.2 [media] v4l: Correct conflicting V4L2 subdev selection API documentation [media] Feature removal: V4L2 selections API target and flag definitions [media] v4l: Unify selection flags documentation [media] v4l: Unify selection flags [media] v4l: Common documentation for selection targets [media] v4l: Unify selection targets across V4L2 and V4L2 subdev interfaces [media] v4l: Remove "_ACTUAL" from subdev selection API target definition names [media] V4L: Remove "_ACTIVE" from the selection target name definitions [media] media: dvb-usb: print mac address via native %pM [media] s5p-tv: Use module_i2c_driver in sii9234_drv.c file [media] media: gpio-ir-recv: add allowed_protos for platform data [media] s5p-jpeg: Use module_platform_driver in jpeg-core.c file [media] saa7134: fix spelling of detach in label [media] cx88-blackbird: replace ioctl by unlocked_ioctl [media] cx88: don't use current_norm [media] cx88: fix a number of v4l2-compliance violations ...
Diffstat (limited to 'Documentation/DocBook/media/v4l/vidioc-s-hw-freq-seek.xml')
-rw-r--r--Documentation/DocBook/media/v4l/vidioc-s-hw-freq-seek.xml18
1 files changed, 15 insertions, 3 deletions
diff --git a/Documentation/DocBook/media/v4l/vidioc-s-hw-freq-seek.xml b/Documentation/DocBook/media/v4l/vidioc-s-hw-freq-seek.xml
index 407dfceb71f..f4db44d0d95 100644
--- a/Documentation/DocBook/media/v4l/vidioc-s-hw-freq-seek.xml
+++ b/Documentation/DocBook/media/v4l/vidioc-s-hw-freq-seek.xml
@@ -58,6 +58,9 @@ To do this applications initialize the <structfield>tuner</structfield>,
call the <constant>VIDIOC_S_HW_FREQ_SEEK</constant> ioctl with a pointer
to this structure.</para>
+ <para>If an error is returned, then the original frequency will
+ be restored.</para>
+
<para>This ioctl is supported if the <constant>V4L2_CAP_HW_FREQ_SEEK</constant> capability is set.</para>
<table pgwide="1" frame="none" id="v4l2-hw-freq-seek">
@@ -87,7 +90,10 @@ field and the &v4l2-tuner; <structfield>index</structfield> field.</entry>
<row>
<entry>__u32</entry>
<entry><structfield>wrap_around</structfield></entry>
- <entry>If non-zero, wrap around when at the end of the frequency range, else stop seeking.</entry>
+ <entry>If non-zero, wrap around when at the end of the frequency range, else stop seeking.
+ The &v4l2-tuner; <structfield>capability</structfield> field will tell you what the
+ hardware supports.
+ </entry>
</row>
<row>
<entry>__u32</entry>
@@ -118,9 +124,15 @@ wrong.</para>
</listitem>
</varlistentry>
<varlistentry>
- <term><errorcode>EAGAIN</errorcode></term>
+ <term><errorcode>ENODATA</errorcode></term>
+ <listitem>
+ <para>The hardware seek found no channels.</para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><errorcode>EBUSY</errorcode></term>
<listitem>
- <para>The ioctl timed-out. Try again.</para>
+ <para>Another hardware seek is already in progress.</para>
</listitem>
</varlistentry>
</variablelist>