I have an LML33 card (two, actually) on a rh9 box, and I am trying to
grab uncompressed images with the v4l api.
Using something like lavtools for compressed images works fine. Using
tools (likelavvideo and xawtv) that use overlaying in various ways works
fine. But actually grabbing an image and having it available in a memory
buffer with mmap does not - VIDIOCMCAPTURE fails with "invalid
argument".
* I have reserved memory (8mb) by passing the mem=whatever parameter at
startup, and I see from "free" that it did work.
* I have tried my own code, and three or four small example programs
found on the net. All fail with the problem above, and that includes
xawtv, when persuaded to use this method rather than Xv or some other
overlay technique.
I'm at my wits end here. Since some code that arguably _should_ be
working (like xawtv) is failing, I wonder if there could be a driver
problem?
As an aside, I have downloaded the latest driver, but seem unable to
build it (it fails at zoran_driver.c:4619 and 4704 with incompatible
type for argument 4 of remap_page_range). I suspect this has something
to do with the kernel source; I have run make dep in the kernel - is
there something else needed?
--
Trust the Computer. The Computer is your friend.
Tel. +46-046 222 8588 Dr. Janne Mor�n (mr)
Home: +46-046 211 4973 Dept. of Cognitive Science
Fax: +46-046 222 9758 Kungshuset, Lund
S-222 22 Lund, Sweden
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