FDC(4)                NetBSD/x86 Kernel Interfaces Manual               FDC(4)


NAME
fdc -- NEC 765 floppy disk controller driver
SYNOPSIS
fdc0 at isa? port 0x3f0 irq 6 drq 2 fdc* at acpi? fdc* at pnpbios? index ? fd* at fdc? drive ?
DESCRIPTION
The fdc driver provides support for the NEC 765 floppy disk controller and floppy disk drives, commonly found on IBM-PC compatible systems. The driver supports the following floppy diskette formats by using par- ticular partitions: 1.44MB 3.5-inch (b) 1.2MB 5.25-inch (c) 360KB 5.25-inch (1.2MB drive) (d) 360KB 5.25-inch (IBM-PC drive) (e) 720KB 3.5-inch (f) 720KB 5.25-inch (g) 360KB 3.5-inch (h) Partition a selects the default format for the attached floppy drive, as determined by the BIOS configuration for the diskette drive.
FORMATTING
The driver supports floppy disk formatting using the interfaces in <sys/fdio.h>: FDIOCGETFORMAT struct fdformat_parms Fetch current formatting parameters. This gets the default parameters for the open device if no parame- ters have been set during the session. FDIOCSETFORMAT struct fdformat_parms Set formatting parameters. The driver saves this state and it persists while the device is open. FDIOCFORMAT_TRACK struct fdformat_cmd Format a track on the medium. If this call returns EINVAL, the track formatting parameters were out of range for the medium. If it returns EIO, there was a medium error while formatting the track. FDIOCSETOPTS int Set driver options which persist until the device is closed. The options should be the logical OR of the desired values below: FDOPT_NORETRY Do not retry operations on failure FDOPT_SILENT Do not print error messages to the con- sole FDIOCGETOPTS int Fetch drive options. A typical use of the formatting facilities would be to open the device, call FDIOCGETFORMAT to fetch the current format parameters, perhaps change a parameter or two, display the formatting details to the user, and then call FDIOCSETFORMAT followed by a series of calls to FDIOCFORMAT_TRACK.
SEE ALSO
fdformat(1), acpi(4), isa(4), pnpbios(4)
HISTORY
The fdc formatting support appeared in NetBSD 1.3. NetBSD 8.0 September 23, 2011 NetBSD 8.0

You can also request any man page by name and (optionally) by section:

Command: 
Section: 
Architecture: 
Collection: 
 

Use the DEFAULT collection to view manual pages for third-party software.


Powered by man-cgi 1.15, Panagiotis Christias
Modified for NetBSD by Kimmo Suominen