suggest tweaking the "usb descriptor" switch (if any) if the device attaches

as ugen(4) rather than umidi(4).

from jmc@ and jakemsr@

1 files changed, 10 insertions, 2 deletions

diff --git a/share/man/man4/umidi.4 b/share/man/man4/umidi.4
index 87f82de77ca..e489281c91d 100644
--- a/share/man/man4/umidi.4
+++ b/share/man/man4/umidi.4
@@ -1,4 +1,4 @@
-.\" $OpenBSD: umidi.4,v 1.6 2007/05/31 19:19:52 jmc Exp $
+.\" $OpenBSD: umidi.4,v 1.7 2008/03/12 20:25:17 ratchov Exp $
 .\" $NetBSD: umidi.4,v 1.4 2002/02/07 03:15:09 ross Exp $
 .\"
 .\" Copyright (c) 2001 The NetBSD Foundation, Inc.
@@ -32,7 +32,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.Dd $Mdocdate: May 31 2007 $
+.Dd $Mdocdate: March 12 2008 $
 .Dt UMIDI 4
 .Os
 .Sh NAME
@@ -69,3 +69,11 @@ The
 driver
 appeared in
 .Ox 3.2 .
+.Sh CAVEATS
+Some USB MIDI devices provide a switch for selecting between
+a vendor specific mode and standard USB MIDI mode.
+Selecting standard USB MIDI mode may allow a device to attach as
+.Nm
+rather than
+.Xr ugen 4 .
+This is particularly true for Roland branded devices.