diff options
author | Aaron Campbell <aaron@cvs.openbsd.org> | 2000-12-21 05:32:53 +0000 |
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committer | Aaron Campbell <aaron@cvs.openbsd.org> | 2000-12-21 05:32:53 +0000 |
commit | 460bf275f9a4deb7f6e405ab1cfafbd9eda64706 (patch) | |
tree | c4a5129fe4f22637f37b674c61733f8d194ce2df /share/man/man4/cy.4 | |
parent | f0a303c104f977553b4f2c4c58cba4bd3a3a023c (diff) |
Various repairs.
Diffstat (limited to 'share/man/man4/cy.4')
-rw-r--r-- | share/man/man4/cy.4 | 34 |
1 files changed, 18 insertions, 16 deletions
diff --git a/share/man/man4/cy.4 b/share/man/man4/cy.4 index 0f149ebe6dd..622ab5aad75 100644 --- a/share/man/man4/cy.4 +++ b/share/man/man4/cy.4 @@ -1,4 +1,4 @@ -.\" $OpenBSD: cy.4,v 1.3 2000/10/18 02:38:21 aaron Exp $ +.\" $OpenBSD: cy.4,v 1.4 2000/12/21 05:32:52 aaron Exp $ .\" .\" Copyright (c) 1993 Andrew Herbert. .\" All rights reserved. @@ -36,8 +36,8 @@ .Cd "cy1 at pci?" .Sh DESCRIPTION This driver provides an interface to Cyclades Cyclom-4Y, Cyclom-8Y and -Cyclom-16Y asynchronous multiport serial boards. These boards are based -around Cirrus Logic CD1400 communication controllers. +Cyclom-16Y asynchronous multiport serial boards. +These boards are based around Cirrus Logic CD1400 communication controllers. .Pp The device minor numbers for this driver are encoded as follows: .Pp @@ -46,7 +46,7 @@ The device minor numbers for this driver are encoded as follows: bits meaning ---- ------- - uuuu physical serial line (i.e. unit) to use + uuuu physical serial line (i.e., unit) to use 0-7 on a cyclom-8Y, 0-15 on a cyclom-16Y xx unused @@ -61,17 +61,18 @@ The device minor numbers for this driver are encoded as follows: .Sh DIAGNOSTICS .Bl -diag .It "cy%d: tty input queue overflow" -Incoming characters have been discarded due to a buffer overflow. This is -caused by the process in control of the device not read(2)ing characters -fast enough. +Incoming characters have been discarded due to a buffer overflow. +This is caused by the process in control of the device not +.Xr read 2 Ns No 'ing +characters fast enough. .It "cy%d: receive fifo overrun" -Incoming characters have been discarded due to a CD1400 channel overrun. This -is caused by interrupts not being serviced sufficiently quickly to prevent -the 12 byte receive FIFO on a serial channel from overflowing. Reducing -the value of the \fIRxFifoThreshold\fR #define from 8 to something smaller may -help slow machines avoid this problem. The driver must have been compiled -with the \fILogOverruns\fR option defined (the default) in order for this -condition to be logged. +Incoming characters have been discarded due to a CD1400 channel overrun. +This is caused by interrupts not being serviced sufficiently quickly to prevent +the 12 byte receive FIFO on a serial channel from overflowing. +Reducing the value of the \fIRxFifoThreshold\fR #define from 8 to something +smaller may help slow machines avoid this problem. +The driver must have been compiled with the \fILogOverruns\fR option +defined (the default) in order for this condition to be logged. .Sh SEE ALSO .Xr com 4 , .Xr termios 4 , @@ -86,8 +87,9 @@ were derived from the fas 2.10 driver by Uwe Doering Evans <bde@kralizec.zeta.org.au>. .Pp This work was made possible through the donation of a Cyclom-8Y board by the -manufacturer, Cyclades Corporation. However, neither Cyclades nor the author -make any warranties regarding this software, nor guarantees of support. +manufacturer, Cyclades Corporation. +However, neither Cyclades nor the author make any warranties regarding +this software, nor guarantees of support. .Sh BUGS There is currently no BREAK handling - breaks are ignored. There is no support for bad-character reporting, except via PARMRK. |