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NCV(4)			     Kernel Interfaces Manual			  NCV(4)

NAME
     ncv -- NCR 53C500 based SCSI host adapter driver

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

	   device scbus
	   device ncv

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

	   ncv_load="YES"

DESCRIPTION
     The  ncv  driver provides access to the SCSI bus connected to an NCR 53C500
     based PC-Card SCSI host adapter or an Adaptec AHA-2920 on the PCI bus.

HARDWARE
     The following devices are currently supported by the ncv driver:

     *	 I-O DATA PCSC-DV
     *	 KME KXLC002 (TAXAN ICD-400PN, etc.), KXLC004, and UJDCD450
     *	 Macnica Miracle SCSI-II mPS110
     *	 Media Intelligent MSC-110, MSC-200
     *	 NEC PC-9801N-J03R
     *	 New Media Corporation BASICS SCSI
     *	 Qlogic Fast SCSI
     *	 RATOC REX-9530, REX-5572 (SCSI only)

DIAGNOSTICS
     The following error messages are sometimes returned:

     SCSI BUS RESET failed  Usually returned when a failure  occurs  during  the
     bus reset.

     CMD_NOP failed  No operation or the operation has failed.

     CMD_NOP|CMD_DMA  A failure occurred during the DMA read/write operations.

     The  ncv  driver  should  return  [ENODEV] when any of the previously noted
     failures occur.

SEE ALSO
     cardbus(4), cd(4), da(4), pccard(4), sa(4), scsi(4)

HISTORY
     The ncv device driver has been developed  for  NetBSD/pc98  and  ported  to
     FreeBSD.	The ncv driver first appeared in FreeBSD 2.2 with PAO and merged
     in FreeBSD 4.2.

AUTHORS
     The ncv driver was written by Naofumi Honda.  This manual page was  written
     by    Tom	  Rhodes    <trhodes@FreeBSD.org>    and    Noriaki    Mitsunaga
     <non@FreeBSD.org>.

FreeBSD 7.0			 August 10, 2004			  NCV(4)

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