diff options
author | joerg <joerg@FreeBSD.org> | 1997-10-19 13:12:35 +0000 |
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committer | joerg <joerg@FreeBSD.org> | 1997-10-19 13:12:35 +0000 |
commit | 6152196d33542af5f3619f45043a5d95f8740ee0 (patch) | |
tree | 96e87c78db1486a259d4637b4303529931827c5d /share/man/man4/fdc.4 | |
parent | c1819b340992c362c4719dc4fbe9fdb6fb549c8d (diff) | |
download | FreeBSD-src-6152196d33542af5f3619f45043a5d95f8740ee0.zip FreeBSD-src-6152196d33542af5f3619f45043a5d95f8740ee0.tar.gz |
Document the new fdc(4) flags.
Diffstat (limited to 'share/man/man4/fdc.4')
-rw-r--r-- | share/man/man4/fdc.4 | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/share/man/man4/fdc.4 b/share/man/man4/fdc.4 index 930d231..6c8861d 100644 --- a/share/man/man4/fdc.4 +++ b/share/man/man4/fdc.4 @@ -24,7 +24,7 @@ .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. .\" -.\" $Id$ +.\" $Id: fdc.4,v 1.8 1997/02/22 13:25:23 peter Exp $ .\" .Dd August 31, 1994 .Dt FDC 4 i386 @@ -34,7 +34,7 @@ .Nd PC architecture floppy disk controller driver .Sh SYNOPSIS -.Cd "controller fdc0 at isa? port" \&"IO_FD1\&" bio irq 6 drq 2 vector fdintr +.Cd "controller fdc0 at isa? port" \&"IO_FD1\&" bio "flags 0x1" "irq 6" "drq 2" "vector fdintr" .Cd "disk fd0 at fdc0 drive 0 .Cd "disk fd1 at fdc0 drive 1 .Pp @@ -48,6 +48,13 @@ In /dev for each floppy device a number of minor devices are present. The indicate the size of the floppy disk (so: 720kB, 1440kB etc). The latter are used for formatting disks using fdformat or for accessing different density disks in multidensity drive. Example: 720kB disk in a 1.44Mb drive. +.Pp +Normally, the driver will ask the system's CMOS memory to obtain the +floppy drive configuration. Some machines do not store any form of a +configuration value in their CMOS. Use the flags value +.Ql 0x1 +to pretend a 1.44 MB floppy drive as the first unit, without asking the +CMOS for it. .Sh FILES .Bl -tag -width Pa -compact .It /dev/fd* |