ATAPICAM (4) | Special files and drivers | Unix Manual Pages | :man|

Alphabetical Categories About us



ATAPICAM (4) \| Special files and drivers \| Unix Manual Pages \| :man▋ NAME atapicam - CAM XPT (transport) module for ATAPI devices CONTENTS Synopsis Description Implementation Notes Examples See Also History Authors Bugs SYNOPSIS .Cd "device atapicam" 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(4). ata(4) and scbus(4) must be configured in the kernel as well. The SCSI target drivers ( cd 4, da(4), or st(4)) can then be used to access the devices. The generic passthrough device, pass(4), can also be used to send SCSI commands directly to the devices through the CAM API. 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 (provided they are ATAPI devices). 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 `MODE_SELECT, MODE_SENSE, READ`, or `WRITE`. They can also be common bugs, such as hanging when queried for extended `INQUIRY` information. EXAMPLES device ata device atapicam device scbus device cd device pass Add the atapicam driver to the kernel. `"camcontrol devlist"` Print the list of all devices available through CAM. `"mount -t cd9660 /dev/cd0 /mnt"` Mount a CD-ROM from an ATAPI CD-ROM drive (the command above assumes that the ATAPI drive is the only CD-ROM unit). SEE ALSO ata(4), cam(4), scsi(4), atacontrol(8), camcontrol(8) HISTORY AUTHORS BUGS ast(4), afd(4))

Created by Blin Media, 2008-2013