Thanks for the help with my last problem. The book "Linux Device Drivers"
is in the mail and shall become my bible shortly :)
I have another short question -- is there ANY way to open/read/write
to a file from a kernel routine? Again, excuse my lack of knowledge
on the subject. What I mean to ask is that I will have a
buffer kmalloc'd in the kernel and I will want to read some data into
it from a file from, say, inside a system call routine. Can this be done
at all?
sys_read calls the the filesystem's read function, which uses
copy_to_user (since it assumes it is invoked from user space through
a system call). There may be other problems, as well.
Thank you.
Stan
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