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Old 05-31-2010, 01:48 AM   #1
turboscrew
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About linux subsystem architectures


Does anybody have hints about where to find some higher level descriptions of the architectures of Linux subsystems, like sound,
video, wlan,...

There are so many subsystems these days that it's hard to find out which are exclusive, which can co-exist and which are used together.

It's also hard to find out which are almost obsolete, which are coming and which are common.

For example the video: v4l, v4l2, uvc
 
Old 05-31-2010, 02:24 AM   #2
Simon Bridge
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There is no single place to find general descriptions of the subsystems.
You just have to see what your system is using and then google for it with your context.
Wikipedia can be a good source of information as is the project homepage.

eg. v4l and v4l2 are the same thing, it is an api. uvc is a v4l driver for uvc devices.
 
Old 05-31-2010, 10:53 AM   #3
jone kim
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linux system

If you are trying to look the info about your system.
Then go with the terminal commands.
like "lspci -vv"
and there are many other commands.
 
Old 05-31-2010, 11:57 AM   #4
i92guboj
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Quote:
Originally Posted by turboscrew View Post
Does anybody have hints about where to find some higher level descriptions of the architectures of Linux subsystems, like sound,
video, wlan,...

There are so many subsystems these days that it's hard to find out which are exclusive, which can co-exist and which are used together.
That might depend entirely on the concrete systems you are interested in and the kernel version we speak about. It's quite a wide topic to give a comprehensive outlook on a single post or even a thread.

Quote:
It's also hard to find out which are almost obsolete, which are coming and which are common.
The kernel documentation is -usually- a good place to know these details. Both the menuconfig help system and the docs under Documentation/ in your kernel source tree are good places to start researching.

If you want something basic, ALSA has taken over OSS3 (OSS4 is being developed in parallel though, but the range of hardware and functionality is nowhere near ALSA these days).

SATA is ruling out the old IDE drivers.

v4l and v4l2 are mostly the same thing today, though technically there's much more to it of course.

http://www.linuxtv.org/downloads/vid....html#diff-v4l
 
  


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