03-19-2009
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I might sound stupid for asking, but could someone please tell me how to view all the device drivers? I'm just starting to use UNIX after using Windows for years. Thanks.
-sysop0130 (1 Reply)
Discussion started by: sysop0130
1 Replies
2. Programming
Here is a cool book. And the price is right!
Linux Device Drivers, 2nd Edition (0 Replies)
Discussion started by: Perderabo
0 Replies
3. Windows & DOS: Issues & Discussions
Suggestion.
Besides running scans it is also a good thing to run "sigverif". This will create a list of ALL drivers on your system, signed and unsigned.
The output is located in your C:Windowssigverif.txt file.
It surprised me most people do not do this. Many trojans mask themselves as... (0 Replies)
Discussion started by: ZOverLord
0 Replies
4. Linux
Hi there,
I thought a lot, wheather or not this thread belongs to this forum, hope I made the right choice.
So my question: Is there such thing like leaf driver in Linux, in correspondance to the Solaris nexus/leaf device driver tree?
I'm asking that in the context of writing a device driver... (3 Replies)
Discussion started by: boyanov
3 Replies
5. Ubuntu
Hey
I am using HP pavilion Notebook, I installed linux on my laptop. But i am unable to connect to internet, can any body help me out to get wireless linux Broadcom drivers for my notebook.
Thanks
kumar (2 Replies)
Discussion started by: kumar_d
2 Replies
6. Solaris
Hi all,
Please excuse me if this is not the right forum to ask my question.
I would like to know more about writing device drivers for Unix,particularly Solaris 10.
excuse me if am being vague, but I have absolutely no idea about how i can start.
I did try to search for a beginners guide to... (1 Reply)
Discussion started by: wrapster
1 Replies
7. UNIX for Dummies Questions & Answers
so i downloaded a linux today,
but i ahve the problem that i cant connect to the internett becouse i need drivers.
annyone know where i can get the drivers? (4 Replies)
Discussion started by: Morton
4 Replies
8. Solaris
Hello all, I'm new here.. Can you please help me with device driver on Solaris10, Sun SPARC server; I need to know how to test if a PCI card is recognized and has a working driver. How to do it? As it is, the driver seems to be 'not attached', but some say it could be because the PCI card is not... (10 Replies)
Discussion started by: orange47
10 Replies
9. UNIX for Advanced & Expert Users
I am to start working on two project on Linux Device Drivers and other on File System.
So I got the book "Understanding Linux Kernel" by Daniel and Marco.
But I am confused as how to proce
Will anybody pls let me know how to go to about studying the chapter in this book? I mean the order in... (1 Reply)
Discussion started by: shefalibv
1 Replies
10. UNIX for Beginners Questions & Answers
Hello everyone from Tenerife, Canary Islands.
How can i see in Debian or similar operating system the installed drivers or controllers ?
Best Regards
https://image.ibb.co/kC5C87/winkho2.gif (1 Reply)
Discussion started by: JohnFissburyn
1 Replies
LEARN ABOUT SUSE
sg_reset
SG_RESET(8) SG3_UTILS SG_RESET(8)
NAME
sg_reset - sends SCSI device, bus or host reset; or checks reset state
SYNOPSIS
sg_reset [-b] [-d] [-h] [-V] DEVICE
DESCRIPTION
The sg_reset utility with no options (other than DEVICE) reports on the reset state (e.g. if a reset is underway) of DEVICE. When given a
-d, -b, or -h option it requests a device, bus or host reset respectively.
In the linux kernel 2.6 series this utility can be called on sd, sr (cd/dvd), st or sg device nodes; if the user has appropriate permis-
sions.
In the linux kernel 2.4 series support for this utility first appeared in lk 2.4.19 and could only be called on sg device nodes. Various
vendors made this capability available in their kernels prior to lk 2.4.19.
OPTIONS
-b attempt a SCSI bus reset. This would normally be tried if the device reset (i.e. option -d) was not successful.
-d attempt a SCSI device reset. If the device seems stuck, this is the first reset that should be tried. This assumes the linux scsi
mid level error handler is not already in the process of resetting DEVICE.
-h attempt a host adapter reset. This would normally be tried if both device reset (i.e. option -d) and bus reset (i.e. option -b) were
not successful.
-V prints the version string then exits.
NOTES
The error recovery code within the linux kernel when faced with SCSI commands timing out and no response from the device (LU), first tries
a device reset and if that is not successful tries a bus reset. If that is not successful it tries a host reset. Users of this utility
should check whether such a recovery is already underway before trying to reset with this utility. The "device,bus,host" order is also rec-
ommended (i.e. first start with the smallest hammer).
SAM-4 defines a hard reset (which includes a device power on and a transport reset), a logical unit reset and a I_T nexus reset. A LU reset
and an I_T nexus reset can be requested via task management function (and support for LU reset is mandatory). In Linux the SCSI subsystem
leaves it up to the low level drivers as to whether a "device reset" is only for the addressed LU or all the LUs in the device that con-
tains the addressed LU. The "bus reset" is a transport reset. A "host reset" attempts to re-initialize the HBA that the request passes
through on route to the DEVICE. Obviously a "host reset" and a "bus reset" can cause collateral damage.
This utility does not allow individual SCSI commands (or tasks as they are called in SAM-4) to be aborted. SAM-4 defines ABORT TASK and
ABORT TASK SET task management functions for that.
AUTHORS
Written by Douglas Gilbert.
COPYRIGHT
Copyright (C) 1999-2006 Douglas Gilbert
This software is distributed under the GPL version 2. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PUR-
POSE.
sg3_utils-1.23 December 2006 SG_RESET(8)