Module Name: src
Committed By: wiz
Date: Wed Jul 18 16:40:30 UTC 2018
Modified Files:
src/share/man/man9: radio.9
Log Message:
Various improvements.
To generate a diff of this commit:
cvs rdiff -u -r1.5 -r1.6 src/share/man/man9/radio.9
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/share/man/man9/radio.9
diff -u src/share/man/man9/radio.9:1.5 src/share/man/man9/radio.9:1.6
--- src/share/man/man9/radio.9:1.5 Mon Jul 9 10:36:30 2018
+++ src/share/man/man9/radio.9 Wed Jul 18 16:40:30 2018
@@ -1,4 +1,4 @@
-.\" $NetBSD: radio.9,v 1.5 2018/07/09 10:36:30 rkujawa Exp $
+.\" $NetBSD: radio.9,v 1.6 2018/07/18 16:40:30 wiz Exp $
.\" $OpenBSD: radio.9,v 1.2 2001/10/08 08:52:50 mpech Exp $
.\"
.\" Copyright (c) Maxim Tsyplakov <[email protected]>
@@ -29,7 +29,7 @@
.Os
.Sh NAME
.Nm radio
-.Nd interface between low and high level FM radio drivers
+.Nd interface between low- and high-level FM radio drivers
.Sh SYNOPSIS
.In dev/radio_if.h
.Ft device_t
@@ -43,22 +43,22 @@ The
.Nm
layer provides support for digitally programmable FM radio tuners.
.Pp
-It is divided into a machine independent, high level part responsible for
-managing device file, and low level hardware drivers.
+It is divided into a machine independent, high-level part responsible for
+managing device files, and low-level hardware drivers.
.Pp
-The high level radio driver attaches to the low level driver
+The high-level radio driver attaches to the low-level driver
when the latter calls
.Fn radio_attach_mi .
.Pp
The
.Fa radio_hw_if
-struct is contains pointers to functions provided by the low level driver.
+struct contains pointers to functions provided by the low-level driver.
The
.Fa hdlp
-argument is a handle to a low level driver's softc structure.
+argument is a handle to a low-level driver's softc structure.
It is sent as the first argument to all the functions in
.Fa radio_hw_if
-when the high level driver calls them.
+when the high-level driver calls them.
.Fa dev
is the device struct for the hardware device.
.Pp
@@ -74,24 +74,27 @@ struct radio_hw_if {
int (*search)(void *, int);
};
.Ed
-.Pp
.Bl -tag -width XXXX
.It Fn (*open) "sc" "flags" "fmt" "lwp"
Called when the radio device is opened.
-Optional, if there is no need to call a driver's function when device file is
-opened, NULL should be passed in this field.
+Optionally, if there is no need to call a driver's function when the device file is
+opened,
+.Dv NULL
+should be passed in this field.
Returns 0 on success, otherwise an error code.
.It Fn (*close) "sc" "flags" "fmt" "lwp"
Called when the radio device is closed.
-Optional, if there is no need to call a driver's function when device file is
-closed, NULL should be passed in thie field.
+Optionally, if there is no need to call a driver's function when the device file is
+closed,
+.Dv NULL
+should be passed in thie field.
Returns 0 on success, otherwise an error code.
.It Fn (*get_info) "sc" "ri"
Fills the radio_info struct.
This function is used to obtain the current state of a hardware device.
It is executed as a result of calling
.Dv RIOCGINFO
-on a device file managed by the high level driver.
+on a device file managed by the high-level driver.
Returns 0 on success, otherwise an error code.
.It Fn (*set_info) "sc" "ri"
Set values from the radio_info struct.
@@ -99,18 +102,19 @@ This function is used to modify the curr
(enable/disable various modes and parameters).
It is executed as a result of calling
.Dv RIOCSINFO
-on a device file managed by the high level driver.
+on a device file managed by the high-level driver.
Returns 0 on success, otherwise an error code.
.It Fn (*search) "sc" "ri"
-Initiates an automatic search for the radio station.
+Initiates automatic search for the radio station.
It is executed as a result of calling
.Dv RIOCSSRCH
-on a device file managed by the high level driver.
+on a device file managed by the high-level driver.
Returns 0 on success, otherwise an error code.
.El
.Sh SEE ALSO
.Xr radio 4
.Sh AUTHORS
+.An -nosplit
The
.Nm
API was written by
