Hello Helmut,
On 04/03/2011 05:11 AM, Helmut Hullen wrote:
> Hallo, Goffredo,
[..]
>> As wrote by Tomasz the minor number of the btrfs-control is allocated
>> dynamically.
>
> At which place?
I replied you too fast. Btrfs register a "misc" device, but its number
is not dynamically allocated (see [1] for further information), but it
is static.
$ grep BTRFS_MINOR -r include/
include/linux/miscdevice.h:#define BTRFS_MINOR 234
I can conclude that _now_ the minor is 234 and not 55. But I don't know
if it is a _stable_ interface.
I think that during the boot you should check the minor with
grep btrfs-control /proc/misc | awk '{ print $1 }'
Regards
G.Baroncelli
[1] http://www.linuxjournal.com/article/2920
>
> Viele Gruesse!
> Helmut
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