01-28-2010
9 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
I am looking for a guide on how to program for either the Linux or FreeBSD (includes 4.4BSD, NetBSD or OpenBSD) kernel. I would prefer to learn how to write device drivers, but anything would help.
If you know, please email me at *removed* or leave a post here
Regards,
Farhan (0 Replies)
Discussion started by: Farhan
0 Replies
2. UNIX for Dummies Questions & Answers
hai friend,
I am new to Linux, i need a book for Linux basic and Linux device driver ..
plz send the book name and author(Easy to learn and mostly used by programmers) and also send the link if it is available in Net...
Thank you.
... (0 Replies)
Discussion started by: sundar.lsr
0 Replies
3. UNIX for Advanced & Expert Users
Hello, I'm searching for a proper way to let the kernel space ISR(implemented in a kernel module) wake up a user space thread on a hardware interrupt.
Except for sending a real-time signal, is it possible to use a semaphore?
I've searched it on google, but it seems impossible to share a... (0 Replies)
Discussion started by: aaronwong
0 Replies
4. UNIX for Dummies Questions & Answers
Hi all,
Is it possible to do the following in Linux (kernel 2.6.x):
- A user-space thread goes to "sleep". Using any call/mechanism
- On a hardware generated interrupt, the Interrupt handler (ISR) "wakes" the sleeping user-thread.
I have seen wait_event() and wake_up() but it appears... (1 Reply)
Discussion started by: agaurav
1 Replies
5. UNIX for Dummies Questions & Answers
Need some clarification on this....
1. how are kernel/ user spaces and high/low memory related?
2. What do they all mean when i have the kernel command line as:
"console=ttyS0,115200 root=/dev/sda2 rw mem=exactmap memmap=1M@0 memmap=96M@1M irqpoll"
or
2. what do mem and memmap mean in... (3 Replies)
Discussion started by: dragonpoint
3 Replies
6. Fedora
I have been reading prep questions for my second unix academy exam, and there's a nuance, I'm not sure I understand it correctly.
I've been under impression from my readings of book by Evi Nemeth and from unix academy DVDs I've been watching, that kernel's modules are drivers. I think of it, as... (25 Replies)
Discussion started by: newlinuxuser1
25 Replies
7. UNIX for Advanced & Expert Users
Hi All,
I'm looking for role change to Linux device Driver developer. My current role has no connection to Linux Device driver development and hence to support my stand i want to do a certification for the same.
I have googled but couldn't found any standard certification. I have submitted... (1 Reply)
Discussion started by: kg_gaurav
1 Replies
8. Shell Programming and Scripting
print "After create SubDir routine.";
createSubDirs($fileDir);
my $from = $ORACLE_HOME.$dirSep.$file;
my $to = $bootstrapDir.$dirSep.$fileDir;
if ($isWindows) {
copy($from,... (1 Reply)
Discussion started by: ambarginni
1 Replies
9. Emergency UNIX and Linux Support
print "After create SubDir routine.";
createSubDirs($fileDir);
my $from = $ORACLE_HOME.$dirSep.$file;
my $to = $bootstrapDir.$dirSep.$fileDir;
if ($isWindows) {
copy($from,... (2 Replies)
Discussion started by: ambarginni
2 Replies
LEARN ABOUT FREEBSD
linprocfs
LINPROCFS(5) BSD File Formats Manual LINPROCFS(5)
NAME
linprocfs -- Linux process file system
SYNOPSIS
linproc /compat/linux/proc linprocfs rw 0 0
DESCRIPTION
The Linux process file system, or linprocfs, emulates a subset of Linux' process file system and is required for the complete operation of
some Linux binaries.
The linprocfs provides a two-level view of process space. At the highest level, processes themselves are named, according to their process
ids in decimal, with no leading zeros. There is also a special node called self which always refers to the process making the lookup
request.
Each node is a directory containing several files:
exe A reference to the vnode from which the process text was read. This can be used to gain access to the process' symbol table, or to
start another copy of the process.
mem The complete virtual memory image of the process. Only those addresses which exist in the process can be accessed. Reads and writes
to this file modify the process. Writes to the text segment remain private to the process.
Each node is owned by the process's user, and belongs to that user's primary group, except for the mem node, which belongs to the kmem group.
FILES
/compat/linux/proc The normal mount point for the linprocfs.
/compat/linux/proc/cpuinfo CPU vendor and model information in human-readable form.
/compat/linux/proc/meminfo System memory information in human-readable form.
/compat/linux/proc/pid A directory containing process information for process pid.
/compat/linux/proc/self A directory containing process information for the current process.
/compat/linux/proc/self/exe The executable image for the current process.
/compat/linux/proc/self/mem The complete virtual address space of the current process.
EXAMPLES
To mount a linprocfs file system on /compat/linux/proc:
mount -t linprocfs linproc /compat/linux/proc
SEE ALSO
mount(2), unmount(2), procfs(5), pseudofs(9)
HISTORY
The linprocfs first appeared in FreeBSD 4.0.
AUTHORS
The linprocfs was derived from procfs by Pierre Beyssac. This manual page was written by Dag-Erling Smorgrav, based on the procfs(5) manual
page by Garrett Wollman.
BSD
August 10, 1994 BSD