Differences between version 8 and revision by previous author of Video4Linux.
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| Newer page: | version 8 | Last edited on Saturday, September 24, 2005 11:09:33 am | by AristotlePagaltzis | Revert |
| Older page: | version 7 | Last edited on Saturday, September 24, 2005 12:06:43 am | by DouglasBagnall | Revert |
@@ -1,13 +1,10 @@
-A framework for drivers of video cameras, TV tuners etc. The device [API] for userland processes is commonly called v4l or v4l2 (v4l being deprecated in theory). [DeviceDriver]s written for this framework are normally compiled into the LinuxKernel
as [Module
]s. The devices are enumerated by [UDev] and appear as <tt>/dev/video0</tt>, <tt>/dev/video1</tt> etc
.
+A framework for drivers of video cameras, TV tuners etc. The device [API] for userland processes is commonly called v4l or v4l2 (v4l being deprecated in theory). Also known
as [V4L
].
-You must have the <tt>videodev</tt> [Module] loaded as well.
+DeviceDriver~s written for this framework are normally compiled into the LinuxKernel as [Module]s.
You must have the <tt>videodev</tt> [Module] loaded as well. The devices are enumerated by [UDev] and appear as <tt>/dev/video0</tt>, <tt>/dev/video1</tt> etc
.
-Some applications require a specific device name e.g. <tt>/dev/video</tt>, although this is probably not the desired behaviour and these apps will probably be modified in the future. If you are using an application that wants a <tt>/dev/video</tt> but your system only has a <tt>/dev/video0</tt> then you need to make a symbolic link.
-The proper way to do this is with
[UDev]. Create (or
modify) a
file called <tt>00_video4linux.rules</tt> in the
<tt>/etc/udev/rules.d</tt> directory, with
the following content
:
-<verbatim>
-# make a symlink to the first video device
-KERNEL="video0", SYMLINK="video"
-</verbatim>
+Some applications require a specific device name e.g. <tt>/dev/video</tt>, although this is probably not the desired behaviour and these apps will probably be modified in the future. If you are using an application that wants a <tt>/dev/video</tt> but your system only has a <tt>/dev/video0</tt> then you need to either
make a symbolic link or set up
[UDev] appropriately
. For the latter, create/
modify the
file <tt>/etc/udev/rules.d/00_video4linux.rules
</tt> and make sure it contains
the following:''''
-
-Also known as [V4L].
+ <verbatim>
+ # make a symlink to the first video device
+ KERNEL="video0", SYMLINK="video"
+ </verbatim>
