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sndstat.4: Improve manpage wording

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Reviewed by:    bcr, khng
Differential Revision:	https://reviews.freebsd.org/D30027
This commit is contained in:
Goran Mekić 2021-05-18 15:34:34 +08:00 committed by Ka Ho Ng
parent b6be9566d2
commit c232fd4b41
1 changed files with 5 additions and 4 deletions
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9
share/man/man4/sndstat.4
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@ -47,10 +47,11 @@ kernel configuration file:
.Sh DESCRIPTION .Sh DESCRIPTION
The ioctl interface provided by The ioctl interface provided by
.Pa /dev/sndstat .Pa /dev/sndstat
device allows callers to enumeration PCM audio devices available for use. device allows callers to enumerate PCM audio devices available for use.
In other words, it provides means to get the list of all audio devices
available to the system.
.Sh IOCTLS .Sh IOCTLS
For all ioctls requiring data exchange between the subsystem and callers, For ioctl calls that take an argument, the following structure is used:
the following structures are used to describe a serialized nvlist:
.Bd -literal -offset indent .Bd -literal -offset indent
struct sndstioc_nv_arg { struct sndstioc_nv_arg {
size_t nbytes; size_t nbytes;
@ -58,7 +59,7 @@ struct sndstioc_nv_arg {
}; };
.Ed .Ed
.Pp .Pp
Here is an example of an nvlist, with explanations of the common fields: Here is an example of an nvlist object with explanations of the common fields:
.Bd -literal -offset indent .Bd -literal -offset indent
dsps (NVLIST ARRAY): 1 dsps (NVLIST ARRAY): 1
from_user (BOOL): FALSE from_user (BOOL): FALSE