123 lines
2.9 KiB
Bash
Executable File
123 lines
2.9 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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need_cmd() {
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command -v "$1" >/dev/null 2>&1 || { echo "[ERR] Missing command: $1" >&2; exit 1; }
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}
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need_cmd rs-enumerate-devices
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need_cmd awk
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need_cmd sed
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need_cmd grep
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realsense_output() {
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rs-enumerate-devices 2>/dev/null || true
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}
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is_realsense_present() {
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local out
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out="$(realsense_output)"
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echo "$out" | grep -qi "Intel RealSense"
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}
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print_bool() {
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if is_realsense_present; then
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echo "true"
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else
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echo "false"
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fi
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}
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list_serials() {
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local out
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out="$(realsense_output)"
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if ! echo "$out" | grep -qi "Intel RealSense"; then
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return 0
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fi
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echo "$out" \
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| awk -F':' '/Serial Number/ {print $2}' \
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| sed 's/^[[:space:]]*//; s/[[:space:]]*$//' \
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| grep -v '^$' \
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| awk '!seen[$0]++'
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}
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# Apply USB power settings to the RealSense sysfs path + its parent hub
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apply_fix() {
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local RS_OUT SERIAL PHY USB_NODE PARENT_HUB DEV_SYS HUB_SYS
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RS_OUT="$(realsense_output)"
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if ! echo "$RS_OUT" | grep -qi "Intel RealSense"; then
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# No device: just print false
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echo "false"
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return 0
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fi
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SERIAL="$(echo "$RS_OUT" | awk -F':' '/Serial Number/ {gsub(/[ \t]/,"",$2); print $2; exit}')"
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PHY="$(echo "$RS_OUT" | awk -F':' '/Physical Port/ {print $2; exit}' | sed 's/^[ \t]*//')"
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# Extract USB node like "2-2.3" from Physical Port
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USB_NODE="$(echo "$PHY" | grep -oE '/usb[0-9]+/[^ ]+' | sed -E 's#.*/usb[0-9]+/##' | cut -d'/' -f2 | head -n1 || true)"
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if [[ -z "${USB_NODE:-}" ]]; then
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USB_NODE="$(echo "$PHY" | grep -oE 'usb[0-9]+/[0-9]+-[0-9]+(\.[0-9]+)?' | sed 's#usb[0-9]+/##' | head -n1 || true)"
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fi
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if [[ -z "${USB_NODE:-}" ]]; then
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# Can't map sysfs; still detected though
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echo "true"
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return 0
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fi
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PARENT_HUB="${USB_NODE%%.*}"
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DEV_SYS="/sys/bus/usb/devices/${USB_NODE}"
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HUB_SYS="/sys/bus/usb/devices/${PARENT_HUB}"
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# Disable autosuspend globally (optional)
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echo -1 | sudo tee /sys/module/usbcore/parameters/autosuspend >/dev/null || true
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apply_power_fix() {
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local path="$1"
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[[ -d "$path" ]] || return 0
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[[ -e "$path/power/control" ]] && echo on | sudo tee "$path/power/control" >/dev/null || true
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[[ -e "$path/power/autosuspend" ]] && echo -1 | sudo tee "$path/power/autosuspend" >/dev/null || true
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[[ -e "$path/power/autosuspend_delay_ms" ]] && echo 0 | sudo tee "$path/power/autosuspend_delay_ms" >/dev/null || true
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}
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apply_power_fix "$HUB_SYS"
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apply_power_fix "$DEV_SYS"
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# Final verification
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print_bool
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}
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usage() {
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cat <<'EOF'
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Usage:
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bash fix_realsense_usb.sh --check # prints true/false only
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bash fix_realsense_usb.sh --fix # applies fix then prints true/false
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bash fix_realsense_usb.sh --serials # prints available RealSense serials, one per line
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Default: --fix
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EOF
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}
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mode="${1:---fix}"
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case "$mode" in
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--check)
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print_bool
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;;
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--fix)
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apply_fix
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;;
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--serials|--list-serials)
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list_serials
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;;
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-h|--help)
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usage
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;;
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*)
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usage >&2
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exit 1
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;;
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esac
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