| FD(4) | Device Drivers Manual (sparc64) | FD(4) |
fdc —
fdc0 at sbus0 (SBus based machines)
fdc0 at ebus0 (PCI based machines)
fd* at fdc0
Bits [0-3] of the minor device number of the special files referring to this device encode the floppy density as follows:
<sys/fdio.h>:
FDIOCGETFORMAT
struct fdformat_parmsFDIOCSETFORMAT
struct fdformat_parmsFDIOCFORMAT_TRACK
struct fdformat_cmdEINVAL, 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
intFDOPT_NORETRYFDOPT_SILENTFDIOCGETOPTS
intA 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.
fdc driver first appeared in NetBSD
4.0.
| May 8, 2007 | NetBSD 10.1 |