disktrap

autodetect disk controller and start appropriate driver (QNX)

Syntax:

Print command line necessary to start driver:
    disktrap [options] [query]



Start driver:
    disktrap [options] start

Options:

-v: Verbose output to help debugging failed detection.
-x type: Exclude scan for this type of card. Cards are scanned for in the order the valid types are listed, below:
ps2, ncr, aha2, aha7, amd, aha4, ide

Description:

The disktrap utility scans the machine it is run on for disk controller hardware. Depending on the mode it is in (query or start), it will either report the correct driver to use for the hardware as a message to the standard output (query), or will start the appropriate driver (start).

The set of disk controllers disktrap can scan for may change as new controllers are supported by QNX drivers. Check the usage message for a definitive list (use disktrap). The set will include at least the following hardware types:

amd
ps2
ncr
aha2
aha7
aha4
ide

The disktrap utility may be run only by root.

disktrap scanning locations

For driver:	Location:
`Fsys.ps2scsi`	checks addresses 0x96, 0x100 0x101, then 0x94, 0x102
`Fsys.ncr8scsi`	uses PCI BIOS
`Fsys.aha2scsi`	checks addresses 0x140, 0x340
`Fsys.aha4scsi`	checks addresses 0x130, 0x134, 0x230, 0x234, 0x330, 0x334
`Fsys.aha7scsi`	checks PCI BIOS, then addresses 0x1c00, 0x2c00, 0x3c00, 0x4c00, 0x5c00, 0x6c00, 0x7c00, 0x8c00, 0x9c00, 0xac00, 0xbc00, 0xcc00, 0xdc00, 0xec00, 0xfc00
`Fsys.ide`	checks addresses 0x1f0, 0x170
`Fsys.ata`	checks addresses 0x1f0, 0x170
`Fsys.amdscsi`	uses PCI BIOS

Exit status:

>0: Failed to detect card and/or start driver.
0: Sucessfully detected card/started driver.

Files:

The standard input is unused.

Error messages and -v status messages are written to the standard error.

In start mode, the standard output is unused. In query mode, a message indicating the appropriate driver to run will be written to the standard output.