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author | Thomas Quinot <thomas@FreeBSD.org> | 2002-10-30 08:42:24 +0000 |
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committer | Thomas Quinot <thomas@FreeBSD.org> | 2002-10-30 08:42:24 +0000 |
commit | 9dab9ccba4dfe67ccbc60fd5de0505ddd1aa97dd (patch) | |
tree | 6030085bd5f81945cf14e1a69881ab9d018135e5 | |
parent | 30613f5610e0139db5eb53407ac7f628ccb141d5 (diff) | |
download | src-9dab9ccba4dfe67ccbc60fd5de0505ddd1aa97dd.tar.gz src-9dab9ccba4dfe67ccbc60fd5de0505ddd1aa97dd.zip |
Man page for ATAPI/CAM.
Reviewed by: roberto
Notes
Notes:
svn path=/head/; revision=106199
-rw-r--r-- | share/man/man4/atapicam.4 | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/share/man/man4/atapicam.4 b/share/man/man4/atapicam.4 new file mode 100644 index 000000000000..f0a3381f77d9 --- /dev/null +++ b/share/man/man4/atapicam.4 @@ -0,0 +1,112 @@ +.\" Copyright (c) 2002 +.\" Thomas Quinot <thomas@FreeBSD.org>. 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. +.\" 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. Neither the name of the author nor the names of any co-contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR THE VOICES IN HIS HEAD +.\" 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. +.\" +.\" $FreeBSD$ +.\" +.Dd October 23, 2002 +.Dt ATAPICAM 4 +.Os +.Sh NAME +.Nm atapicam +.Nd CAM XPT (transport) module for ATAPI devices +.Sh SYNOPSIS +.Cd "device atapicam" +.Sh DESCRIPTION +The ATAPI/CAM module allows ATAPI devices (CD-ROM, CD-RW, DVD drives, +floppy drives such as Iomega Zip, tape drives) to be accessed through +the SCSI subsystem (CAM). +.Pp +.Nm ata +and +.Nm scbus +must be configured in the kernel as well. +The SCSI target drivers +.Pq Nm cd , Nm da , No or Nm st +can then be used to access the devices. +The generic passthrough device +.Nm pass +can also be used to send SCSI commands directly +to the devices through the CAM API. +.Pp +A separate CAM bus is created for each ATA bus in the system. +On each of these buses, target id 0 is assigned to the master +device, and id 1 is assigned to the slave +.Pq provided they are ATAPI devices . +.Sh IMPLEMENTATION NOTES +Some SCSI commands are intercepted by the driver, and undergo special +processing in order to work around limitations of ATAPI devices. +Such limitations can be consequences of the ATAPI specification. +For example, ATAPI devices do not implement the 6-byte versions +of +.Nm MODE_SELECT , +.Nm MODE_SENSE , +.Nm READ , +or +.Nm WRITE . +They can also be common bugs, such as hanging when queried for +extended +.Nm INQUIRY +information. +.Sh EXAMPLES +.Dl device atapicam +.Dl device scbus +.Dl device cd +.Dl device pass +.Pp +Add the +.Nm +driver to the kernel. +.Pp +.Dl camcontrol devlist +.Pp +Print the list of all devices available through CAM. +.Pp +.Dl mount -t cd9660 /dev/cd0c /mnt +.Pp +Mount a CD-ROM from an ATAPI CD-ROM drive +.Pq the command above assumes that the ATAPI drive is the only CD-ROM unit . +.Sh SEE ALSO +.Xr ata 4 , +.Xr scsi 4 , +.Xr atacontrol 8 , +.Xr camcontrol 8 +.Sh HISTORY +The ATAPI/CAM driver first appeared in +.Fx 5.0 . +.Sh AUTHORS +.An -nosplit +The ATAPI/CAM driver was written by +.An Thomas Quinot Aq thomas@FreeBSD.org . +.Sh BUGS +.Pp +.Nm +and ATAPI-specific target drivers +.Pq Nm acd , Nm ast , No and Nm afd +can be configured in the same kernel. +Simultaneous access to the same device through the SCSI generic drivers +and the ATAPI-specific drivers may cause problems and is strongly discouraged. + |