jdec_dimm(4): add a reference to smbmsg(8) to jedec_dimm(4) and smbus(4)

Add a cross reference to smbmsg(8) which is useful for discovering local
devices and difficult to find otherwise.

PR: 247749
Reviewed by: pauamma@gundo.com
Differential Review: https://reviews.freebsd.org/D40839

share/man/man4/jedec_dimm.4

@@ -24,7 +24,7 @@
 .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
-.Dd April 25, 2023
+.Dd January 2, 2026
 .Dt JEDEC_DIMM 4
 .Os
 .Sh NAME
@@ -167,6 +167,10 @@ dev.jedec_dimm.6.serial: 0c4c46ad
 dev.jedec_dimm.6.temp: 43.1C
 dev.jedec_dimm.6.type: DDR4
 .Ed
+.Pp
+You can use
+.Xr smbmsg 8
+to probe for devices.
 .Sh COMPATIBILITY
 .Nm
 implements a superset of the functionality of the now-deleted

share/man/man4/smbus.4

@@ -60,7 +60,8 @@ between the internal SMB devices and external ACCESS bus devices.
 .Sh SEE ALSO
 .Xr iicbus 4 ,
 .Xr iicsmb 4 ,
-.Xr smb 4
+.Xr smb 4 ,
+.Xr smbmsg 8
 .Rs
 .%T The SMBus specification
 .%U http://www.smbus.org/specs/