ncv4
Ncr 53c500 based scsi host adapter driver
Usage
device ncv device scbus
Overview
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.