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change retry logic and document why /dev does not work

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This commit is contained in:
Emil Lerch 2025-07-10 17:38:55 -07:00
parent 5951fa8088
commit 45793dadd8
Signed by: lobo
GPG key ID: A7B62D657EF764F8
1 changed files with 6 additions and 3 deletions
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9
entrypoint.sh
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@ -9,12 +9,15 @@ if [ "${INPUT_UHUB_CONTROL}" != "false" ]; then
fi fi
uhubctl -a off -p "${UHUB_PORT}" -l "${UHUB_LOCATION}" # Off seems to be reflected immediately uhubctl -a off -p "${UHUB_PORT}" -l "${UHUB_LOCATION}" # Off seems to be reflected immediately
# Capture the number of hidraw devices with the port off # Capture the number of hidraw devices with the port off
devs="$(find /dev -maxdepth 1 -name 'hi*' |wc -l)" # The way docker works, we can't seem to monitor /dev directory
# But a USB device should show up in dmesg log when this happens
#devs="$(find /dev -maxdepth 1 -name 'hi*' |wc -l)"
devs=$(dmesg |grep "usb ${UHUB_LOCATION}.${UHUB_PORT}" |grep -c "New USB device found")
uhubctl -a on -p "${UHUB_PORT}" -l "${UHUB_LOCATION}" uhubctl -a on -p "${UHUB_PORT}" -l "${UHUB_LOCATION}"
retries=0 retries=0
while [ "$(find /dev -maxdepth 1 -name 'hi*' |wc -l)" = "$devs" ] && [ $retries -lt 10 ]; do while [ "$(dmesg |grep "usb ${UHUB_LOCATION}.${UHUB_PORT}" |grep -c "New USB device found")" = "$devs" ] && [ $retries -lt 10 ]; do
# Generally takes a few seconds to settle in # Generally takes a few seconds to settle in
echo "waiting for device connection ($retries / 10)" echo "waiting for device connection ($((retries+1)) / 10)"
sleep 1 sleep 1
retries=$((retries+1)) retries=$((retries+1))
done done