commit b9574ff953d5c931c68aab352b477bc24c666488
author Tom Craig <craigt@google.com> Wed Apr 23 19:21:02 2025 -0700
committer Tom Craig <craigt@google.com> Wed Apr 23 20:52:35 2025 -0700
tree d4e9850f382af966c9b337338401da4bea5fef8c
parent 1b1be7b4a57229bc46bef361132381916c0fe3a2

hothd: Pass usb-device to USB helper scripts

When sourcing helper scripts from .../hothd/usb-config/*.sh,
provide the current USB device (provided by udev) as the first argument
to the script.

This allows simplification of those sourced scripts and improved
maintainability.

Google-Bug-Id: 413123154
Change-Id: Ia094c961ddcf93464b3a50e32ba810936f616551
Signed-off-by: Tom Craig <craigt@google.com>

hothd_usb.sh.in

diff --git a/hothd_usb.sh.in b/hothd_usb.sh.in
index 9f13941..49d104d 100644
--- a/hothd_usb.sh.in
+++ b/hothd_usb.sh.in
@@ -5,13 +5,15 @@
 declare -A IGNORE_ADDRESS_MODE=()
 declare -A UART_CHANNEL_ID=()
 shopt -s nullglob
+
+usb="$(basename "$1")"
+
 for cfg in '@datadir@'/hothd/usb-config/*.sh; do
   # Followed https://www.shellcheck.net/wiki/SC1090 for dynamic source target
   # shellcheck source=/dev/null
-  source "$cfg" || exit
+  source "$cfg" "$usb" || exit
 done
 
-usb="$(basename "$1")"
 name="${HOTH_USB_NAMES["$usb"]}"
 if [ -z "$name" ]; then
   echo "Missing mapping for $usb" >&2