On 05/06/2013 04:23 PM, Bjørn Mork wrote:
"Patrick Monnerat" <Patrick.Monnerat@xxxxxxxxxxxxx> writes:
Create ioctl device node for megaraid_sas driver. Let this node be
managed by udev. Fix a typo.
Or maybe just simplify it all and use a misc device instead? See how
this is done in e.g. drivers/scsi/mpt3sas/mpt3sas_ctl.c or
drivers/message/fusion/mptctl.c
Yes, could be done that way, But I want to retain compatibility with
existing shell scripts doing things like:
DEVICE=/dev/megaraid_sas_ioctl_node
DEVICENAME=megaraid_sas_ioctl
DEVICEPERM=400
MAJOR=`grep "$DEVICENAME" /proc/devices | awk '{print $1}'`
if [ -n "$MAJOR" -a ! -e "$DEVICE" ]; then
mknod "$DEVICE" c "$MAJOR" 0
chmod "$DEVICEPERM" "$DEVICE"
fi
Snippets like this one appear both in open-source projects and Dell scripts.
Patrick
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