Il 22/11/2012 20:08, Kay Sievers ha scritto:
On Wed, Nov 21, 2012 at 4:55 PM, Franco Martelli<martellif67@xxxxxxxxx> wrote:
Hi everybody,
I'm using Debian Sqeeze 6.0, kernel 2.6.32, udev version 164.
With kernel provided from debian my dvdrw is under scsi subsystem and
udevadm monitor recognize optical disk change with a lot of info output
suitable to write rules.
I've recompilated the kernel and things has changed, now my dvdrw is under
ide/atapi subsystem and the device name is hdc now.
I'd like to write a rule that remove udf and crc_itu_t modules as soon as
optical disk is left off from dvdrw drive. Example:
SUBSYSTEM=="block", KERNEL=="hdc", ACTION=="change", RUN+="/sbin/rmmod udf
crc_itu_t"
I look athttp://reactivated.net/writing_udev_rules.html but doesn't help
for ide devices ACTION=="change".
Could anybody help me to write such a rule?
Modern userspace and kernel facilities like media change polling do
not support all the old and deprecated IDE drivers. The IDE drivers
are just not capable to do what you are looking for. Udev does not
support IDE drivers at all, only libata.
You might just want to disable the IDE drivers in the kernel config
and use the libata ones. Ideally the kernel would just delete the IDE
stuff.
Kay
solved. :-)
I've build the kernel using /boot/config-2.6.32-5-amd64 as reference,
that is the .config of the kernel provided from Debian. I checked line
by line libata and scsi targets and with make menuconfig I excluded "< >
ATA/ATAPI/MFM/RLL support --->" and I apply new configuration as you
suggest.
So the rule that do the work is:
SUBSYSTEM=="scsi", ENV{SDEV_MEDIA_CHANGE}=="1", ACTION=="change",
RUN+="/sbin/rmmod udf crc_itu_t"
I don't know if it's the right way to unload modules no more needed but
it works.
bye,
--
Franco Martelli.
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