atapicam man page on FreeBSD

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ATAPICAM(4)		 BSD Kernel Interfaces Manual		   ATAPICAM(4)

     atapicam — CAM XPT (transport) module for ATAPI devices

     To compile this driver into the kernel, place the following lines in your
     kernel configuration file:

	   device scbus
	   device ata
	   device atapicam

     Alternatively, to load the driver as a module at boot time, place the
     following line in loader.conf(5):


     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).

     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 hang‐
     ing when queried for extended INQUIRY information.

	   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).

     ata(4), cam(4), scsi(4), atacontrol(8), camcontrol(8)

     The ATAPI/CAM driver first appeared in FreeBSD 4.8 and FreeBSD 5.0.

     The ATAPI/CAM driver was written by Thomas Quinot ⟨⟩.

     atapicam and ATAPI-specific target drivers (acd(4), ast(4), and afd(4))
     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.

BSD			       October 22, 2009				   BSD

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