Re: re problem

On Monday 15 November 2004 19:20, Hannes Bjurek wrote:
> When I created /dev/raw1394 with mknod dvgrab says:
> raw1394 - failed to get handle: Invalid argument.
> kino gives me error that module isn't loading or rw problems on
> /dev/raw1394 ------

> root@HanneZ:~# ls -l /dev/raw1394
> crw-rw-rw- 1 root root 171, 16 2004-11-15 22:33 /dev/raw1394

This is my /dev/raw1394 device. You might want to try a minor of 0.

crw-r--r-- 1 root root 171, 0 Feb 7 2004 /dev/raw1394

I really do not know if it actually works or not. I do not think I have
anything that would use the raw1394 device. Everything I have would
interface through sbp2 for the device level.

The text below is from the ieee1394_core.h file though that explains the
usage and assignments of the device minor numbers. Perhaps it will be of
some help.

Cheers,
James

/*
 * CHARACTER DEVICE DISPATCHING
 *
 * All ieee1394 character device drivers share the same major number
 * (major 171). The 256 minor numbers are allocated to the various
 * task-specific interfaces (raw1394, video1394, dv1394, etc) in
 * blocks of 16.
 *
 * The core ieee1394.o modules handles the initial open() for all
 * character devices on major 171; it then dispatches to the
 * appropriate task-specific driver.
 *
 * Minor device number block allocations:
 *
 * Block 0 ( 0- 15) raw1394
 * Block 1 ( 16- 31) video1394
 * Block 2 ( 32- 47) dv1394
 *
 * Blocks 3-14 free for future allocation
 *
 * Block 15 (240-255) reserved for drivers under development, etc.
 */

#define IEEE1394_MAJOR 171

#define IEEE1394_MINOR_BLOCK_RAW1394 0
#define IEEE1394_MINOR_BLOCK_VIDEO1394 1
#define IEEE1394_MINOR_BLOCK_DV1394 2
#define IEEE1394_MINOR_BLOCK_AMDTP 3
#define IEEE1394_MINOR_BLOCK_EXPERIMENTAL 15

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Received on Tue Nov 16 02:08:20 2004