On 2001.05.30 11:47:23 +0200 Brad Hards wrote:
> Without knowing the details, I risk making a fool of myself, but would it
>
> be possible to use a similar approach to gpm? So we use a named pipe or
> similar in user space, generated by vfm (video format manager:).
> General idea is
> device driver exports to kernel V4L
> kernel V4L exports to userspace on /dev/videodataXX
> userspace daemon opens /dev/videodataXX and munges formats to
> /dev/videoXX
> old style clients use /dev/videoXX (hopefully without much change)
> new style clients use /dev/videodataXX
>
> Not very clean, but at least a migration path.
> Brad
Whats wrong with:
old style clients use /dev/videoXX (and are on their own)
new style clients ask userspace lib to open /dev/videoXX and deliver them
data in the right format.
The lib just has to capture and (if the hardware can't) convert the data to
format the user wants.
Jeroen
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