[src/trunk]: src/share/man/man4 Clarify problem.

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

details:   https://anonhg.NetBSD.org/src/rev/add5dc8e131f
branches:  trunk
changeset: 1019489:add5dc8e131f
user:      nia <nia%NetBSD.org@localhost>
date:      Fri Mar 12 08:03:24 2021 +0000

description:
Clarify problem.

diffstat:

 share/man/man4/hdaudio.4 |  9 ++++++---
 1 files changed, 6 insertions(+), 3 deletions(-)

diffs (28 lines):

diff -r 32438501e3fc -r add5dc8e131f share/man/man4/hdaudio.4
--- a/share/man/man4/hdaudio.4  Fri Mar 12 04:57:42 2021 +0000
+++ b/share/man/man4/hdaudio.4  Fri Mar 12 08:03:24 2021 +0000
@@ -1,4 +1,4 @@
-.\"    $NetBSD: hdaudio.4,v 1.18 2021/03/11 17:42:14 nia Exp $
+.\"    $NetBSD: hdaudio.4,v 1.19 2021/03/12 08:03:24 nia Exp $
 .\"
 .\" Copyright (c) 2009, 2010 The NetBSD Foundation, Inc.
 .\" All rights reserved.
@@ -27,7 +27,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.Dd March 11, 2021
+.Dd March 12, 2021
 .Dt HDAUDIO 4
 .Os
 .Sh NAME
@@ -133,5 +133,8 @@
 .It
 Modem function groups
 .It
-I/O with precision greater than 16 bits with the MI audio layer
+20-bit and 24-bit I/O formats.
+The machine-independent audio layer supports samples with 32-bit precision,
+but these will be converted down to 16-bit before output, because converting
+to a hardware precision that isn't a power of two is not yet handled.
 .El