From 110d4e2df3fefbb7a99eb4e990fab98d6948aa9e Mon Sep 17 00:00:00 2001
From: Ian Lepore <ian@FreeBSD.org>
Date: Sat, 23 Jun 2018 23:08:25 +0000
Subject: Add an example for displaying the manufacturer and size info from a
 standard spiflash chip.

---
 usr.sbin/spi/spi.8 | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/usr.sbin/spi/spi.8 b/usr.sbin/spi/spi.8
index 240a97ed10d1..0335f0ccbe6f 100644
--- a/usr.sbin/spi/spi.8
+++ b/usr.sbin/spi/spi.8
@@ -191,6 +191,12 @@ as binary data, piped through
 displaying it as two hexadecimal unsigned short integer values.
 .Pp
 echo "00 01" | spi -A -b -d rw -c 4 | od -t x2
+.It
+Query the manufacturer ID and size from a standard spiflash device, by
+sending the command byte 0x9f and displaying the 3-byte reply in ASCII hex.
+.Pp
+spi -f spigen0.0 -m 0 -s 1000000 -d r -c 3 -A -C 9f
+
 .El
 .Pp
 .Sh SEE ALSO
-- 
cgit v1.2.3