mts-io: add radio-reset-h5 script

radio-reset-h5 is a workaround script to perform a reset of the
H5 radio.

The script disables the USB controller before resetting
the radio and enables it afterward.  If this script is not used
and a radio reset is done with mts-io directly, the radio will not
enumerate properly after reset and will continue to reset itself
indefinitely.

1 files changed, 11 insertions, 0 deletions

diff --git a/multitech/recipes/multitech/mts-io/radio-reset-h5 b/multitech/recipes/multitech/mts-io/radio-reset-h5
new file mode 100755
index 0000000..7a059eb
--- /dev/null
+++ b/multitech/recipes/multitech/mts-io/radio-reset-h5
@@ -0,0 +1,11 @@
+#!/bin/sh
+
+# This script works around an H5 radio quirk by disabling USB and 
+# waiting for the radio to power up before re-enabling it.  Note that
+# this will disable all USB devices connected to the USB host controller
+# until the reset is finished.  USB device port is not affected.
+
+rmmod ohci_hcd
+mts-io-sysfs store radio-reset 0
+sleep 8
+modprobe ohci_hcd