Thomas De Schampheleire wrote:
You're right that this probably is the cleanest solution.
However, this does not work for anything other than a debug parameter
right? Suppose I want to communicate with the module, for something
else. How can I do this?
An ioctl on the drivers device node, eg:
fd = open("/dev/mydriver", O_RDWR);
ioctl(fd, MYDRIVER_FOO_ACTION, &myfooadata);
In Linux, drivers and modules can use the /proc filesystem to pass
information from and to user space. A user can pass a parameter to the
module by writing to such a virtual file in /proc.
Which IMO is an abomination and a gross miss use of /proc.
For the reading part of /proc many things in the OpenSolaris kernel use
kstat instead.
--
Darren J Moffat
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