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Console input may not be necessarily keyboard, adjust accordingly.

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Comment out the splhigh stuff for now, it doesn't quite match current use.
This commit is contained in:
jdolecek 2001-06-02 22:04:11 +00:00
parent 9987ee5249
commit fb1a28db61
1 changed files with 12 additions and 10 deletions
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22
share/man/man9/cons.9
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@ -1,4 +1,4 @@
.\" $NetBSD: cons.9,v 1.1 2001/06/02 19:13:00 jdolecek Exp $
.\" $NetBSD: cons.9,v 1.2 2001/06/02 22:04:11 jdolecek Exp $
.\"
.\" Copyright (c) 2001 The NetBSD Foundation, Inc.
.\" All rights reserved.
@ -57,7 +57,7 @@
These functions operate over current console device. The console has
to be initialized first, before these functions could be used.
.Pp
Keyboard polling functions
Console input polling functions
.Fn cngetc ,
.Fn cngetsn
and
@ -99,7 +99,7 @@ and
.Fn cngetc .
Number of read characters is
.Fa size
at maximum, user is notified by keyboard bell when the end
at maximum, user is notified by console bell when the end
of input buffer is reached. Standard <Baskspace> key
work as expected. <@> key makes
.Fn cngetsn
@ -119,10 +119,11 @@ Switch the console driver to polling mode if
.Fa on
is nonzero, or back to interrupt driven mode if
.Fa on
is zero. The system priority level has to be raised to splhigh before
the polling mode could be switched on, so that the polled console device would
not be disturbed by interrupts. The system priority level has to be
restored to previous level once the polling mode is switched back off.
is zero.
.\" The system priority level has to be raised to splhigh before
.\" he polling mode could be switched on, so that the polled console device would
.\" ot be disturbed by interrupts. The system priority level has to be
.\" estored to previous level once the polling mode is switched back off.
.Fn cnpollc
should be used during kernel startup only.
.It Fn cnputc
@ -134,9 +135,10 @@ rather than using this low-level interface.
This waits until a <Enter> key is pressed:
.Pp
.Bd -literal -compact
int s, c;
.\" int s, c;
int c;
s = splhigh();
.\" s = splhigh();
cnpollc(1);
for(;;) {
c = cngetc();
@ -146,7 +148,7 @@ for(;;) {
}
}
cnpollc(0);
splx(s);
.\" splx(s);
.Ed
.Sh SEE ALSO
.Xr pckbd 4 ,