Re: mmaps and friends with large (>32pages) buffers

On Wed, Aug 18, 2004 at 02:31:39PM +0400, comedi_at_scil.sinp.msu.ru wrote:
> The problem is in the subject.
> I like to make large memory (>=4Mb) available for IO buffers.
> I can take defragmented memory from unused kernel space (mem=...).
> Seems, that there is no way to use it with comedi driver (corresponding 
> structures are filled while init of the driver, async structure is 
> separtated from 'attach', fops are unavailable in the driver and mmap is 
> attached in comedi_fops and there is no way to change that).

You're probably looking for the --read-buffer option to comedi_config.
Should go up to 128 MB, IIRC.



dave...

Received on 2004-08-18Z16:53:57