diff options
| author | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-08-21 20:17:13 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-08-22 10:35:55 +0300 |
| commit | dc2c8bd3c9a44ed38d9af6c7243fdddc42ec391a (patch) | |
| tree | 624fa0f05b998f9901bdee9fff38a39da6de95c9 /drivers/media/dvb-core | |
| parent | 88c25dcb1185f2c7041550976430e27fa9d8dcca (diff) | |
| download | linux-dc2c8bd3c9a44ed38d9af6c7243fdddc42ec391a.tar.xz | |
[media] DocBook/device-drivers: Add drivers/media core stuff
There are lots of docbook marks at the media subsystem, but
those aren't used.
Add the core headers/code in order to start generating docs.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'drivers/media/dvb-core')
| -rw-r--r-- | drivers/media/dvb-core/dvb_math.h | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/media/dvb-core/dvb_math.h b/drivers/media/dvb-core/dvb_math.h index aecc867e9404..f586aa001ede 100644 --- a/drivers/media/dvb-core/dvb_math.h +++ b/drivers/media/dvb-core/dvb_math.h @@ -30,9 +30,10 @@ * to use rational values you can use the following method: * intlog2(value) = intlog2(value * 2^x) - x * 2^24 * - * example: intlog2(8) will give 3 << 24 = 3 * 2^24 - * example: intlog2(9) will give 3 << 24 + ... = 3.16... * 2^24 - * example: intlog2(1.5) = intlog2(3) - 2^24 = 0.584... * 2^24 + * Some usecase examples: + * intlog2(8) will give 3 << 24 = 3 * 2^24 + * 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 @@ -45,7 +46,8 @@ extern unsigned int intlog2(u32 value); * to use rational values you can use the following method: * intlog10(value) = intlog10(value * 10^x) - x * 2^24 * - * example: intlog10(1000) will give 3 << 24 = 3 * 2^24 + * An usecase example: + * intlog10(1000) will give 3 << 24 = 3 * 2^24 * due to the implementation intlog10(1000) might be not exactly 3 * 2^24 * * look at intlog2 for similar examples |