Timer interrupt frequency

Stephane Letz (letz@rd.grame.fr)
Mon, 23 Aug 1999 13:36:53 +0200


We are developing a kernel module which needs a task to be done with a 1
millisecond resolution.

- Is there any way to change the frequency of the timer interrupt up to
1kHz, or install a fast timer interrupt to be done at 1kHz and keep the
usual 100 Hz timer interrupt for processes? Or do we need to use a
real-time kernel like RT Linux?

- Is there (somewhere on the net ) any example of copying structured memory
(for example a linked list) between kernel and user space using
copy_to_user and copy_from_user?

Thanks

Stephane Letz

Grame: Centre National de creation musicale
9, Rue du Garet
69001 Lyon
Tel: 04-72-07-37-00
Fax: 04-72-07-37-01
Web: www.grame.fr

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