| fdc.4 (56189) | fdc.4 (57676) |
|---|---|
| 1.\" 2.\" Copyright (c) 1994 Wilko Bulte 3.\" All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright --- 10 unchanged lines hidden (view full) --- 19.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26.\" | 1.\" 2.\" Copyright (c) 1994 Wilko Bulte 3.\" All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright --- 10 unchanged lines hidden (view full) --- 19.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26.\" |
| 27.\" $FreeBSD: head/share/man/man4/fdc.4 56189 2000-01-17 14:50:59Z asmodai $ | 27.\" $FreeBSD: head/share/man/man4/fdc.4 57676 2000-03-01 14:50:24Z sheldonh $ |
| 28.\" 29.Dd August 31, 1994 30.Dt FDC 4 31.Os FreeBSD 32.Sh NAME 33.Nm fdc 34.Nd 35PC architecture floppy disk controller driver 36.Sh SYNOPSIS 37.Cd "device fdc0 at isa? port IO_FD1 flags 0x1 irq 6 drq 2" 38.Cd device fd0 at fdc0 drive 0 39.Cd device fd1 at fdc0 drive 1 40.Sh DESCRIPTION 41This driver provides access to floppy disk drives and QIC40/80 tapedrives. | 28.\" 29.Dd August 31, 1994 30.Dt FDC 4 31.Os FreeBSD 32.Sh NAME 33.Nm fdc 34.Nd 35PC architecture floppy disk controller driver 36.Sh SYNOPSIS 37.Cd "device fdc0 at isa? port IO_FD1 flags 0x1 irq 6 drq 2" 38.Cd device fd0 at fdc0 drive 0 39.Cd device fd1 at fdc0 drive 1 40.Sh DESCRIPTION 41This driver provides access to floppy disk drives and QIC40/80 tapedrives. |
| 42In /dev for each floppy device a number of minor devices are present. The | 42In /dev for each floppy device a number of minor devices are present. 43The |
| 43/dev/fd* devices with trailing alphabetic characters are used to indicate 44.Sq partitions | 44/dev/fd* devices with trailing alphabetic characters are used to indicate 45.Sq partitions |
| 45on the floppy disk. The /dev/fd*.<number> are devices that | 46on the floppy disk. 47The /dev/fd*.<number> are devices that |
| 46indicate the size of the floppy disk (so: 720kB, 1440kB etc). The latter 47are used for formatting disks using fdformat or for accessing different | 48indicate the size of the floppy disk (so: 720kB, 1440kB etc). The latter 49are used for formatting disks using fdformat or for accessing different |
| 48density disks in multidensity drive. Example: 720kB disk in a 1.44Mb drive. | 50density disks in multidensity drive. 51Example: 720kB disk in a 1.44Mb drive. |
| 49.Pp 50Normally, the driver will ask the system's CMOS memory to obtain the 51floppy drive configuration. Some machines do not store any form of a 52configuration value in their CMOS. Use the flags value 53.Ql 0x1 54to pretend a 1.44 MB floppy drive as the first unit, without asking the 55CMOS for it. 56.Pp --- 28 unchanged lines hidden --- | 52.Pp 53Normally, the driver will ask the system's CMOS memory to obtain the 54floppy drive configuration. Some machines do not store any form of a 55configuration value in their CMOS. Use the flags value 56.Ql 0x1 57to pretend a 1.44 MB floppy drive as the first unit, without asking the 58CMOS for it. 59.Pp --- 28 unchanged lines hidden --- |