diff options
author | joerg <joerg@FreeBSD.org> | 1999-12-21 08:33:03 +0000 |
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committer | joerg <joerg@FreeBSD.org> | 1999-12-21 08:33:03 +0000 |
commit | 367ba76bfd7f174f8f5f824a936846ca6b127977 (patch) | |
tree | 201362a26fcc6c8ea16af3ec77fa6e98428a19c9 /share | |
parent | 53a4306dc988cadece776e9474ce21ef9b1da014 (diff) | |
download | FreeBSD-src-367ba76bfd7f174f8f5f824a936846ca6b127977.zip FreeBSD-src-367ba76bfd7f174f8f5f824a936846ca6b127977.tar.gz |
Add a flag to disable FIFO probing. The code seems to have a chance of
misdetecting FIFO capabilities, at least on my girlfriend's Thinkpad 755,
the driver doesn't work using the FIFO.
While i was at it, i (partially) fixed option FCC_YE since it would no
longer have compiled at all under -current. I've also made an attempt
to document the device driver flags value (ab-)used internally by this
option.
RELENG_3 candidate, but with a slightly different patch there (will go
to jkh in email).
Diffstat (limited to 'share')
-rw-r--r-- | share/man/man4/fdc.4 | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/share/man/man4/fdc.4 b/share/man/man4/fdc.4 index 97348c1..f837eb0 100644 --- a/share/man/man4/fdc.4 +++ b/share/man/man4/fdc.4 @@ -53,6 +53,20 @@ 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. +.Pp +The flags value +.Ql 0x2 +is reserved for PCMCIA floppy use, and should never be set in a +configuration file directly. It is internally handled in the driver +if the compilation option +.Dv FDC_YE +is set, and defers device probing. +.Pp +Normally, the device driver detects FDC chipsets that have an internal +FIFO, and enables the FIFO on them. There is a slight chance that this +feature is actually misdetected (seen on an IBM Thinkpad 755c), so it +can be turned off using flags +.Ql 0x4 . .Sh FILES .Bl -tag -width Pa -compact .It /dev/fd* |