[gnome-bluetooth/wip/hadess/default-adapter-work: 5/9] contrib: Add script to unbind an adapter from its driver

[Bastien Nocera <hadess src gnome org>]

commit b6853b5e596d0838f21b84b703d2eaab7fc47a25
Author: Bastien Nocera <hadess hadess net>
Date:   Wed Dec 15 11:08:27 2021 +0100

    contrib: Add script to unbind an adapter from its driver
    
    This makes the Bluetooth drivers not handle the device, while still
    making sure the USB part of it is available for other purposes, such as
    virtualisation and gaming.

 contrib/unbind-bluetooth-driver.sh | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
---
diff --git a/contrib/unbind-bluetooth-driver.sh b/contrib/unbind-bluetooth-driver.sh
new file mode 100755
index 00000000..fcf02858
--- /dev/null
+++ b/contrib/unbind-bluetooth-driver.sh
@@ -0,0 +1,14 @@
+#!/bin/sh
+
+ADAPTER_TO_DISABLE=${1:-hci0}
+SYSFS_PATH=/sys/class/bluetooth/$ADAPTER_TO_DISABLE
+
+if [ ! -h $SYSFS_PATH ] ; then
+       echo "Could not find adapter $ADAPTER_TO_DISABLE"
+       echo "Usage: $0 [hciX]"
+       exit 1
+fi
+
+USB_DEVICE_PATH=`realpath $SYSFS_PATH/device`
+USB_DEVICE=`basename $USB_DEVICE_PATH`
+echo $USB_DEVICE > $SYSFS_PATH/device/driver/unbind