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DeeJanuzandClaude Opus 5.5
c2739cb0df
Hand tracking no longer starts with SteamVR: hands/run.sh install leaves the units disabled and links hands/ft-handsctl into ~/.local/bin, which turns it on and off (on | off | status | log | cutouts on|off | gestures). With it on, hands show through the screens; pinches and grips move the pointer only with POINTER_HANDS=1, now off by default. ft-camd's service runs the mono cameras only: while the headset is worn, the colour module writes just a half-size image into the top-left quarter of its buffers, which ft-camd can't use yet. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
63 lines
3.1 KiB
Bash
Executable File
63 lines
3.1 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Install, start, stop, or inspect hand tracking on the Frame: ft-camd (the camera broker) and
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# ft-hands (the tracker), user services that stop with SteamVR. They don't start with it:
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# ft-handsctl on|off (on the Frame) or hands/run.sh start|stop.
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# Usage: hands/run.sh install|uninstall
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# hands/run.sh caps # give ft-camd its capabilities again (a rebuild clears them)
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# hands/run.sh start|stop|restart|status|log [lines]
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# install and caps need the password (sudo setcap, once per build of ft-camd). On the Frame,
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# sudo asks in the terminal. From a PC (or with no terminal), the password comes from
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# steamos_root_pwd in the repo's .env and is sent to sudo -S on stdin, never on a command line.
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set -euo pipefail
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root=$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)
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. "$root/scripts/_env.sh"
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frame="$root/scripts/frame.sh"
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units="frametop-camd.service frametop-hands.service"
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# pidfd_getfd on XRService (ptrace_scope=1), system-wide tracepoints, and their root-only
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# format files. ft-camd drops them all once it has set up.
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caps=cap_sys_ptrace,cap_perfmon,cap_dac_read_search+ep
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sudo_run() {
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if [ "$FRAME_LOCAL" = 1 ] && [ -t 0 ]; then
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sudo bash -c "$1" # asks for the password here
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return
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fi
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local pw
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pw=$(sed -n 's/^steamos_root_pwd=//p' "$root/.env" 2>/dev/null)
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pw=${pw#[\"\']}; pw=${pw%[\"\']} # .env values may be quoted
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[ -n "$pw" ] || { echo "no terminal for sudo, and steamos_root_pwd is missing from $root/.env" >&2; exit 1; }
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printf '%s\n' "$pw" | on_frame "sudo -S -p '' bash -c $(printf %q "$1")"
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}
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set_caps() { # only when missing: a rebuild clears them, a reinstall doesn't
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local bin
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bin=$(printf %q "$FRAME_REPO/hands/build/ft-camd")
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if on_frame "getcap $bin | grep -q cap_sys_ptrace"; then
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echo "ft-camd has its capabilities"
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return
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fi
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sudo_run "setcap $caps $bin && getcap $bin"
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}
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states="for u in $units; do echo \"\$u: \$(systemctl --user is-active \$u)\"; done"
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case ${1:-status} in
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install)
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"$root/hands/build.sh"
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set_caps
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for u in $units; do
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fill_template "$root/hands/$u" | on_frame "mkdir -p ~/.config/systemd/user && cat > ~/.config/systemd/user/$u"
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done
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# Installed but not started with SteamVR: ft-handsctl on|off (linked into ~/.local/bin).
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"$frame" --host "set -e; systemctl --user daemon-reload; systemctl --user disable $units 2>/dev/null || true
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mkdir -p ~/.local/bin && ln -sfn $(printf %q "$FRAME_REPO/hands/ft-handsctl") ~/.local/bin/ft-handsctl
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$states; echo 'start it with: ft-handsctl on'" ;;
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caps) set_caps ;;
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uninstall) "$frame" --host "systemctl --user disable --now $units 2>/dev/null
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for u in $units; do rm -f ~/.config/systemd/user/\$u; done; systemctl --user daemon-reload; echo removed" ;;
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start|stop|restart) "$frame" --host "systemctl --user $1 $units; $states" ;;
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status) "$frame" --host "$states; journalctl --user -u frametop-hands.service --no-pager -o cat -n 4" || true ;;
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log) "$frame" --host "journalctl --user -u frametop-camd.service -u frametop-hands.service --no-pager -o short -n ${2:-30}" ;;
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*) echo "usage: $0 install|uninstall|caps|start|stop|restart|status|log [lines]" >&2; exit 2 ;;
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esac
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