umass.4: Add HISTORY, HARDWARE, and SPDX

While here, break a long line that agitates the linter.

Fixes:		cc16f1b9d9261f18 (Add umass.c)
MFC after:	1 hour
Discussed with:	imp, ivy

diff --git a/sys/dev/usb/FILES b/sys/dev/usb/FILES

1 files changed, 27 insertions, 3 deletions

diff --git a/share/man/man4/umass.4 b/share/man/man4/umass.4
index 03e8b6ff6ef1..9164f02b7d1e 100644
--- a/share/man/man4/umass.4
+++ b/share/man/man4/umass.4
@@ -1,3 +1,6 @@
+.\"
+.\" SPDX-License-Identifier: BSD-2-Clause
+.\"
 .\" Copyright (c) 1999
 .\"	Nick Hibma <n_hibma@FreeBSD.org>. All rights reserved.
 .\"
@@ -22,7 +25,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.Dd January 27, 2020
+.Dd October 2, 2025
 .Dt UMASS 4
 .Os
 .Sh NAME
@@ -71,6 +74,22 @@ requires
 and
 .Xr scbus 4
 to be included in the kernel.
+.Sh HARDWARE
+The
+.Nm
+driver supports USB Mass Storage devices such as:
+.Pp
+.Bl -bullet -compact
+.It
+USB thumb drives
+.It
+USB hard disk drives
+.It
+USB floppy drives
+.El
+.Sh CACHE EFFECTS
+Many direct access devices are equipped with read and/or write caches.
+Parameters affecting the device's cache are stored in mode page 8,
 .Sh EXAMPLES
 .Bd -literal -offset indent
 device umass
@@ -92,7 +111,8 @@ camcontrol rescan 0:0:3
 Rescan all slots on a multi-slot flash reader, where the slots map to separate
 LUNs on a single SCSI ID.
 Typically only the first slot will be enabled at boot time.
-This assumes that the flash reader is the first SCSI bus in the system and has 4 slots.
+This assumes that
+the flash reader is the first SCSI bus in the system and has 4 slots.
 .Sh SEE ALSO
 .Xr cfumass 4 ,
 .Xr ehci 4 ,
@@ -101,7 +121,11 @@ This assumes that the flash reader is the first SCSI bus in the system and has 4
 .Xr usb 4 ,
 .Xr xhci 4 ,
 .Xr camcontrol 8
-.\".Sh HISTORY
+.Sh HISTORY
+The
+.Nm
+driver appeared in
+.Fx 4.3 .
 .Sh AUTHORS
 .An -nosplit
 The