summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorMauro Carvalho Chehab <mchehab@osg.samsung.com>2015-08-22 13:37:28 +0300
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>2015-08-22 15:05:40 +0300
commite08bb6f79fa0b9bf94ea44a306d1528172d788af (patch)
treedca13c3a4c2bf9460f02e62a353bebbd545d4ac1
parent4f1c1868e8d4e493d66b8e11eebbc95abdbaf444 (diff)
downloadlinux-e08bb6f79fa0b9bf94ea44a306d1528172d788af.tar.xz
[media] DocBook: add dvb_math.h to documentation
There are already some comments at dvb_math.h that are ready for DocBook, although not properly formatted. Convert them, fix some issues and add this file to the device-drivers DocBook. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Acked-by: Jonathan Corbet <corbet@lwn.net>
-rw-r--r--Documentation/DocBook/device-drivers.tmpl2
-rw-r--r--drivers/media/dvb-core/dvb_math.h15
2 files changed, 10 insertions, 7 deletions
diff --git a/Documentation/DocBook/device-drivers.tmpl b/Documentation/DocBook/device-drivers.tmpl
index fb5c16a24e4b..21fc7684d706 100644
--- a/Documentation/DocBook/device-drivers.tmpl
+++ b/Documentation/DocBook/device-drivers.tmpl
@@ -229,6 +229,7 @@ X!Isound/sound_firmware.c
!Iinclude/media/rc-core.h
!Idrivers/media/dvb-core/dvb_ca_en50221.h
!Idrivers/media/dvb-core/dvb_frontend.h
+!Idrivers/media/dvb-core/dvb_math.h
<!-- FIXME: Removed for now due to document generation inconsistency
X!Iinclude/media/v4l2-ctrls.h
X!Iinclude/media/v4l2-dv-timings.h
@@ -241,7 +242,6 @@ X!Edrivers/media/dvb-core/dvb_demux.c
X!Idrivers/media/dvb-core/dvbdev.h
X!Edrivers/media/dvb-core/dvb_net.c
X!Idrivers/media/dvb-core/dvb_ringbuffer.h
-X!Idrivers/media/dvb-core/dvb_math.h
-->
</chapter>
diff --git a/drivers/media/dvb-core/dvb_math.h b/drivers/media/dvb-core/dvb_math.h
index f586aa001ede..34dc1df03cab 100644
--- a/drivers/media/dvb-core/dvb_math.h
+++ b/drivers/media/dvb-core/dvb_math.h
@@ -25,7 +25,9 @@
#include <linux/types.h>
/**
- * computes log2 of a value; the result is shifted left by 24 bits
+ * cintlog2 - computes log2 of a value; the result is shifted left by 24 bits
+ *
+ * @value: The value (must be != 0)
*
* to use rational values you can use the following method:
* intlog2(value) = intlog2(value * 2^x) - x * 2^24
@@ -35,13 +37,15 @@
* intlog2(9) will give 3 << 24 + ... = 3.16... * 2^24
* intlog2(1.5) = intlog2(3) - 2^24 = 0.584... * 2^24
*
- * @param value The value (must be != 0)
- * @return log2(value) * 2^24
+ *
+ * return: log2(value) * 2^24
*/
extern unsigned int intlog2(u32 value);
/**
- * computes log10 of a value; the result is shifted left by 24 bits
+ * intlog10 - computes log10 of a value; the result is shifted left by 24 bits
+ *
+ * @value: The value (must be != 0)
*
* to use rational values you can use the following method:
* intlog10(value) = intlog10(value * 10^x) - x * 2^24
@@ -52,8 +56,7 @@ extern unsigned int intlog2(u32 value);
*
* look at intlog2 for similar examples
*
- * @param value The value (must be != 0)
- * @return log10(value) * 2^24
+ * return: log10(value) * 2^24
*/
extern unsigned int intlog10(u32 value);