[src/trunk]: src/share/man/man4 Update man page to reflect latest changes (ad...

[rkujawa <rkujawa%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/31e55901fa4c
branches:  trunk
changeset: 790502:31e55901fa4c
user:      rkujawa <rkujawa%NetBSD.org@localhost>
date:      Tue Oct 15 13:45:09 2013 +0000

description:
Update man page to reflect latest changes (added sysctl knobs for temperature
limit and hysteresis).

diffstat:

 share/man/man4/mcp980x.4 |  15 +++++++++++++--
 1 files changed, 13 insertions(+), 2 deletions(-)

diffs (37 lines):

diff -r 6e4f6b531ab8 -r 31e55901fa4c share/man/man4/mcp980x.4
--- a/share/man/man4/mcp980x.4  Tue Oct 15 13:43:51 2013 +0000
+++ b/share/man/man4/mcp980x.4  Tue Oct 15 13:45:09 2013 +0000
@@ -1,4 +1,4 @@
-.\" $NetBSD: mcp980x.4,v 1.3 2013/10/15 11:22:58 rkujawa Exp $
+.\" $NetBSD: mcp980x.4,v 1.4 2013/10/15 13:45:09 rkujawa Exp $
 .\"
 .\" Copyright (c) 2013 The NetBSD Foundation, Inc.
 .\" All rights reserved.
@@ -46,11 +46,17 @@
 The following
 .Xr sysctl 3
 variable are provided:
-.Bl -tag -width machdep.mcp980x0.res
+.Bl -tag -width machdep.mcp980x0.hysteresis
 .It Va machdep.mcp980x0.res
 ADC resolution (integer).
 Valid values are 0-3, where 0 is 9-bit (0.5 Celsius degree) and 3 is 12-bit
 (0.0625 Celsius degree) resolution.
+.It Va machdep.mcp980x0.templimit
+If the ambient temperature exceeds this limit, the chip asserts an alert line
+(integer).
+.It Va machdep.mcp980x0.hysteresis
+Hysteresis for temperature limit (integer).
+.El
 .Sh SEE ALSO
 .Xr envsys 4
 .Sh HISTORY
@@ -68,3 +74,8 @@
 MCP9805 chip is different and is supported by the
 .Xr sdtemp 4
 driver.
+.Pp
+The MCP980x chip supports hysteresis and temperature limit values with
+resolution of 0.5 Celsius degree, however the
+.Nm
+driver supports setting only integer values.