Deprecated: The each() function is deprecated. This message will be suppressed on further calls in /home/zhenxiangba/zhenxiangba.com/public_html/phproxy-improved-master/index.php on line 456 A FreeBSD CAM xpt module for ATAPI devices
Description
This change to FreeBSD adds
a new CAM xpt type (i.e. something that operates like a SCSI bus
adapter driver) that allows access to ATAPI devices through the
generic CAM layer. For more information you can peruse the
atapicam(4) man page.
Availability
As of 2002-11-01, ATAPI/CAM is part of FreeBSD 4-STABLE.
It will be included in FreeBSD releases starting with 4.8.
As of 2002-08-09, ATAPI/CAM is part of FreeBSD 5-CURRENT.
It is included in FreeBSD releases starting with 5.0.
The only recommended way of using ATAPI/CAM is:
with FreeBSD 4: to upgrade to a version of the RELENG_4 branch
posterior to 2002-11-01 and follow the instructions in
/sys/conf/LINT.
with FreeBSD 5: to upgrade to a version posterior
to 2002-08-09 and follow the instructions in /sys/conf/NOTES;
NEWBUS ATAPI/CAM
The version of ATAPI/CAM currently in the source tree does
not support dynamic loading or unloading of the ATAPI/CAM code
at run time. If you would like to test ATAPI/CAM as a kernel
loadable module, please use
this patch.
Important note: this is an EXPERIMENTAL implementation
for those who insist on trying bleeding edge code and are familiar
with the procedure of rebuilding their system. Don't blame me if
some disaster happens and you have no backups (but do let me know
anyway, this might help fixing bugs!)
Reporting problems
To report a problem with the ATAPI/CAM driver, please always
include the following information:
exact version of the patches you used;
complete dmesg output;
complete information about what you were trying to do
(application used, with exact version number; complete and
exact copy of any error message);
precise description of the expected behaviour of the system;
precise description of the observed behaviour of the system.
Problems encountered with the version of ATAPI/CAM that is now in
the standard FreeBSD source tree should be reported through the
FreeBSD
problem reports database.
CAVEAT
Disclaimer: this code is provided as is, with no guarantee whatsoever!
Use at your own risks! Fiddling with your kernel is DANGEROUS.
This code works for me, but if it blows up your computer, I won't
be responsible.
This code is released under the following provisions:
* Copyright (c) 2001, 2002 Thomas Quinot
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer,
* without modification, immediately at the beginning of the file.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
All material beyond this point is
to be regarded as HISTORICAL information.
ATAPICAM consists of two patches. The first one contains the
driver code proper;
it should work on 4.x-STABLE and 5.0-CURRENT kernels alike.
The second one inserts various hooks in the existing kernel code, and
exists in two different versions:
atapicam-STABLE-config-date.diff for FreeBSD 4-STABLE
atapicam-CURRENT-config-date.diff for FreeBSD 5-CURRENT, deprecated
You can retrieve the patch from here.
Please always use the latest version.
Earlier ones are left here only as historical documentation.
To use ATAPICAM, you have to retrive the first (common) patch,
as well as the version of the second that corresponds to your kernel
versions. You also need to have the following options present in
your kernel configuration:
device ata
device atapicd # or atapifd or atapist
device atapicam
# Versions prior to 20020820 used 'options ATAPICAM'
device scbus
device pass
device cd # or sa or da
Patch, rebuild, reboot. Voilą! You should see your brand new devices
in the output of camcontrol devlist.