How to write rules for mtd based devices

[Juergen Beisert <jbe@pengutronix.de>]

Hello list,

has anybody an idea how to write some rules to match devices from the mtd
framework?

All I get is:
------------------------------------------------------------------
$ udevadm info -a -p /sys/block/mtdblock5

Udevinfo starts with the device specified by the devpath and then
walks up the chain of parent devices. It prints for every device
found, all possible attributes in the udev rules key format.
A rule to match, can be composed by the attributes of the device
and the attributes from one single parent device.

  looking at device '/devices/virtual/block/mtdblock5':
    KERNEL="mtdblock5"
    SUBSYSTEM="block"
    DRIVER=""
    ATTR{range}="1"
    ATTR{removable}="0"
    ATTR{ro}="0"
    ATTR{size}="1024"
    ATTR{capability}="10"
    ATTR{stat}="       0        0        0        0        0        0        0        0        0        0        0"
------------------------------------------------------------------

And its mostly the same for all the other mtdblock devices.

The other frameworks like SATA and USB providing much more information about
their bus controllers and connected devices to find adequate matching rules.
But mtd seems very uncommunicative, or do I query the wrong path to search for
usefull rules to match?

Regards,
Juergen
-- 
Dipl.-Ing. Juergen Beisert | http://www.pengutronix.de
 Pengutronix - Linux Solutions for Science and Industry
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