linux kernel - How to set the permissions of my driver file using udev rules -


i trying set permissions on device driver file read/write users using udev rules work. here udev rules :

subsystem=="lpc*", kernel=="lpc?*", driver=="lpc", group="users", mode="0666"

when test using :

sudo udevadm test $(udevadm info -q path -n /dev/lpc_peach)2>&1

this @ bottom lines :

preserve permissions /dev/lpc_peach, 020600, uid=0, gid=0 preserve existing symlink '/dev/char/248:0' '../lpc_peach'

i can't identify wrong! useful.

edit 1 : when run udevadm info -q -n /dev/lpc_peach here get:

p: /devices/virtual/lpc_spartan/lpc_peach n: lpc_peach e: devname=/dev/lpc_peach e: devpath=/devices/virtual/lpc_spartan/lpc_peach e: major=247 e: minor=0 e: subsystem=lpc_spartan


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