Temperature module USB reconnect (Flex 9.1.2)

validated · updated 2026-07-17

Temperature module USB reconnect (Flex 9.1.2)

Regression suite for TempDeck / gcode-module USB disconnect tolerance cherry-picked into monorepo branch chore_release-9.1.2. Validates unique inventory, absent/present polling across reconnect cycles, and a live set-temperature smoke command on the restored module instance.

Monorepo branch: chore_release-9.1.2 · compared to v9.1.1 · robot OS 9.1.2-alpha.0

Hardware: temperatureModuleV2

Related PRs

#21935 chore(mono): Cherry-pick select commits for chore_release-9.1.2
#21834 fix(api): retry module build with backoff on transient ParseError/NoResponse
#21880 fix(api): prevent duplicate module entries during USB reconnect

Harness commands

uv run flex-test module-reconnect b1
uv run flex-test module-reconnect wait-absent --serial <SERIAL>
uv run flex-test module-reconnect wait-present --serial <SERIAL>
uv run flex-test module-reconnect smoke --serial <SERIAL> --celsius 25

Tests

ID	Plan
B1 Unique attach pass	Baseline inventory must show exactly one temperature module with no duplicate serials. Ensure TempDeck USB is connected. Run `uv run flex-test module-reconnect b1`. Confirm PASS and record serial. KansasFLEX TDV21P20211130D06 idle ~22C
B2 Unplug then replug pass	Reconnect path must drop the module then restore a single live instance (#21834/#21880). Unplug TempDeck USB. Run `wait-absent --serial <SERIAL>`. Replug USB. Run `wait-present --serial <SERIAL>` and `b1`.
B3 Rapid reconnect cycles pass	Duplicate serial accumulation was latent until retry landed; stress reconnect. Repeat unplug/absent/replug/present for three full cycles. After each present, confirm duplicates=none. Three cycles on KansasFLEX; no duplicates
B4 Transient re-enumeration pass	TempDeck-specific poller/driver reconnect on brief USB re-enumeration. Covered by rapid USB unplug/replug cycles above. Optionally wiggle/reseat cable without full removal.
B5 Live command after reconnect pass	Ensure the restored instance is usable (not a stale closed port). With module present, run `module-reconnect smoke --serial <SERIAL> --celsius 25`. Expect setTargetTemperature and deactivate both succeeded. set 25C succeeded; deactivate succeeded