The following line works for udev in /etc/udev/rules.d/10-local.rules:
SUBSYSTEM=="fa_sniffer", MODE="0444", OPTIONS="last_rule"
For some reason we need to set last_rule, otherwise this rule doesn't get
applied.
See http://reactivated.net/writing_udev_rules.html for documentation on udev rules. Some useful programs noted there:
udevtestGiven path to sysfs node ('without' the leading
/sys) prints the udev rules that will be applied. For example:udevtest /class/fa_sniffer/fa_sniffer0
udevinfoWalks sysfs tree printing information about the device as understood by udev. In this case the actual path must be passed. For example:
udevinfo -a -p /sys/class/fa_sniffer/fa_sniffer0
The FA archiver tool runs best with direct output to a target block device. For
this to be successful the device needs to be writeable. One solution is to
ensure that the FA archiver runs as a member of a group, say targetdev, with
the following line in /etc/udev/rules.d/:
KERNEL=="sdb", GROUP="targetdev", MODE="0660", OPTIONS="last_rule"
To install on target system, let $SOURCE be the directory containing the
fa_sniffer driver, then the following commands should be sufficient for a
complete installation (on RHEL 5):
# cp $SOURCE/fa_sniffer.rules /etc/udev/rules.d # ln -fsn $SOURCE /usr/src/fa_sniffer-1.0 # dkms add -m fa_sniffer -v 1.0 # dkms build -m fa_sniffer -v 1.0 # dkms install -m fa_sniffer -v 1.0
Annoyingly difficult to find sensible documentation for rpmbuild. Here are a
variety of urls: