malloc()? vmalloc()? kmalloc()?

Carsten Pluntke (su0289@sx2.hrz.uni-dortmund.de)
Tue, 4 Aug 1998 08:05:40 +0200 (MET DST)


Hi,

I'm thinking about a device driver (for a framegrabber card, to be more
specific) and it would need a quite large frame buffer because after a
snapshot it should have the whole image at random access, if I read the
code for video4linux correctly...

The problem is that I just found too few information to decide which one
is correct, programmer's documentation seems to be quite sparse...

By the way, I would need a correct way to do buffer_mmap() operation
(the driver end of mmap()) then, too.

Furthermore, is somewhere out there a compilation of questions like these
ones? (How to write a driver, certain specifications for various device
classes, documentation of certain kernel functions ect...)

Carsten

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.altern.org/andrebalsa/doc/lkml-faq.html