Re: Merging DRM and fbdev

From: Vladimir Dergachev
Date: Sun Oct 03 2004 - 12:03:22 EST


km - library

Libraries are kernel modules that don't attach to any specific
hardware, they just supply routines for other drivers to call. We
might want to change the name of these to libdrm, libfb, libkm.

I haven't looked into Gatos yet but I'd like to see the radeon
converted to follow the model of all of the other vl4 cards instead of
having it's own system. In the X on GL world the 2D XAA radeon driver
is gone. Gatos support will need to live somewhere else.

Jon, this is a common misconception - GATOS km module *does* provide a v4l interface.

What is different is that the device configuration (like setting the tuner or encoding) is done by Xserver.

All km does is check whether the card can supply a v4l stream and, if so, it provides it. This is little different from a webcam driver, especially
if a webcam has its own on/off switch.

The misconception arises from the fact that many v4l programs were only made to work with bt848 cards - they would *not* work with webcams any
more than they would work with km.

best

Vladimir Dergachev


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Jon Smirl
jonsmirl@xxxxxxxxx


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