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<title>tinyusb.git/examples/dual, branch hil-add-ea4088qs</title>
<subtitle>Unnamed repository; edit this file 'description' to name the repository.</subtitle>
<id>http://cgit.235523.xyz/tinyusb.git/atom/examples/dual?h=hil-add-ea4088qs</id>
<link rel='self' href='http://cgit.235523.xyz/tinyusb.git/atom/examples/dual?h=hil-add-ea4088qs'/>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/'/>
<updated>2026-09-03T21:03:39Z</updated>
<entry>
<title>dual: run host_info_to_device_cdc on ea4088_quickstart</title>
<updated>2026-09-03T21:03:39Z</updated>
<author>
<name>hathach</name>
<email>thach@tinyusb.org</email>
</author>
<published>2026-09-03T11:19:17Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=e98fdfc82a2ffd1370c42efffb1b6fcc1819c99b'/>
<id>urn:sha1:e98fdfc82a2ffd1370c42efffb1b6fcc1819c99b</id>
<content type='text'>
The board has both USB ports wired: U1 to the Type-A host connector and U2
to the micro-B device connector, and board_init() already puts the port
select in that mode, so it can run the dual example.

- Allow the example on LPC40XX.
- Point the host stack at rhport 0: ohci maps the TinyUSB rhport onto its
  root-hub port index, and the host controller here is index 0, while the
  dual examples default to rhport 1.
- Move the string-descriptor buffers out of the stack. They are written by
  the host controller, so on parts whose USB master cannot reach the CPU
  stack (this family) the strings came back as garbage. host/device_info
  already keeps its transfer buffer in CFG_TUH_MEM_SECTION; do the same
  here.

Verified on ea4088_quickstart with a WCH-Link on the Type-A port and the
micro-B plugged into a PC:

  mounted device 1
  Device 1: ID 1a86:8010 SN 7FD88F0604B5
    iManufacturer       1     wch.cn
    iProduct            2     WCH-Link
</content>
</entry>
<entry>
<title>test/hil: usbtest fleet enablement, shuffled scheduling, unique PIDs</title>
<updated>2026-07-14T06:22:48Z</updated>
<author>
<name>hathach</name>
<email>thach@tinyusb.org</email>
</author>
<published>2026-07-13T10:53:34Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=e02f93158cc602ba6f20945a187172abf2546718'/>
<id>urn:sha1:e02f93158cc602ba6f20945a187172abf2546718</id>
<content type='text'>
Pool/config:
- record real uids (ra8m1_ek), enable usbtest for espressif s3/p4, then
  park ra6m5_ek and ra8m1_ek in boards-skip (ra6m5's usbtest/MSC traffic
  can kill the uPD720201 host on its ROM firmware; ra8m1 USBHS bring-up
  pending); max32666/nrf54lm20 stay enabled - their MosChip flakiness
  never wedges
- re-enable device/usbtest on HS boards (mimxrt1064, ch32v307) now that
  uPD720201 firmware 2.0.2.6 fixes the command-ring death; mimxrt1015
  stays skipped - its HS battery killed the controller on both ROM and
  2.0.2.6 firmware (board-specific); match the moved host-test bundles
  (f723 &lt;-&gt; rt1064); skip never-passing tests on the new
  nrf5340dk/nrf54lm20dk boards and the detached pico host bundle, each
  documented with a comment

Host-controller quirk gating in usbtest.py (auto-skip, self-heals on a
healthy xHCI):
- MosChip MCS9990 EHCI: case 25 (int-OUT never scheduled, FRINDEX bug)
  and case 11 (unlinked reads complete short/EREMOTEIO)
- Renesas uPD720201 xHCI: firmware-gated. The card must run firmware
  &gt;= 2.0.2.6 (RAM-uploaded - it reverts to ROM on every power cycle):
  on older firmware the command ring dies under unlink stress (a
  Configure Endpoint command stops completing; the hub worker deadlocks
  holding the device lock; only a host power cycle recovers; three
  boards reproduced it). usbtest.py reads the FW version register (PCI
  config 0x6c) and refuses to run at all on older firmware - hil_test
  surfaces that as a failed test with the reason. On current firmware
  the full 30-case battery runs (validated FS+HS: metro_m4, f723,
  f723-DMA all 30/30).

Scheduling (hil_test.py):
- Shuffle each (board, variant)'s test order with a seeded RNG
  (HIL_SHUFFLE_SEED to replay) so usbtest batteries and flash churn spread
  across the timeline instead of convoying on one controller.
- Per-controller usbtest + flash semaphores: HIL_USBTEST_PARALLEL
  (default 4) concurrent usbtest batteries and HIL_FLASH_PARALLEL
  (default 8) concurrent flashes per host controller. Profiled on
  uPD720201 firmware 2.0.2.6 across 8/1..12/8: wall time falls
  22.2/14.3/12.5/10.8 min at usbtest width 1/2/3/4 and plateaus there;
  zero controller errors everywhere; first battery case failures
  (leaf-hub bandwidth stretch) appear at 12/8, and flash width 12 only
  amplifies flasher-hub contention flakes - so 8/4 is the optimum. A
  separate battery-window flash throttle was profiled and dropped.
- Give every example a unique hardcoded USB PID (0x4001-0x4022, usbtest
  keeps 0x4010) instead of the PID_MAP interface bitmap: different
  examples now always re-enumerate back-to-back, even on boards whose
  CPU reset does not drop D+ (WCH CH58x), so the EXAMPLE_PID table and
  same-PID adjacency reordering in hil_test.py are gone; only the
  variant-boundary same-example repeat needs a swap.
- Report matrix: stable columns with the metric-bearing tests pinned
  first (usbtest, cdc_msc_throughput, msc_file_explorer[_freertos]),
  the rest alphabetical.

Fail fast:
- enum wait budget 8 s on the first attempt, 4 s on retries; dfu waits
  are deadline-based so dfu-util's own runtime counts against the
  budget.
  A device-absent failure now costs ~3-5x a passing test (20-30 s)
  instead of 10-30x (47-150 s).
- CI runs hil_test with --retry 1 and no in-run second pass: a broken
  fixture fails the job fast instead of holding the self-hosted runner
  for hours and blocking other PRs' HIL jobs. hil_test still writes the
  .skip sidecar, so a manual re-run attempt only retests what failed.

Review fixes (multi-agent adversarial review of this commit):
- tinyusb_win_usbser.inf: the PID rework moved five CDC examples onto
  even PIDs the INF's odd-only DeviceList never matched (legacy-Windows
  usbser binding) - appended 0x4006/4008/400a/4020/4022 to both lists.
- usbtest example: USBTEST_TIER is now overridable and the descriptors
  and pumps are tier-conditional, so a board whose DCD cannot serve a
  tier lowers it instead of skipping the whole example - RA2A1 (RUSB2
  with no isochronous pipe) builds at tier 3 via its BOARD_ define; the
  host battery follows the tier advertised in bcdDevice. Tier-4 output
  verified byte-identical after the refactor.
- dynamic_configuration's second config derived USB_PID + 11 = 0x4018,
  colliding with net_lwip_webserver - now USB_PID + 0x0100, outside the
  per-example space. tools/check_example_pids.py (pre-commit hook)
  enforces PID uniqueness incl. derived and literal idProduct values.
- usbtest.py firmware gate: matched by device ID (uPD720201/720202,
  both use the 0x6c FW register), and an unreadable version (setpci
  missing/denied) now refuses with its own message instead of
  masquerading as "firmware 0x00000000"; noted the gate is necessary
  but not sufficient (board-specific kills stay per-board skips).
- hil_test: deadline waits use time.monotonic(); multiprocessing
  context pinned to fork (raw semaphores in Pool initargs); flash and
  usbtest permits unified into one fail-closed, exception-safe
  ctrl_permit (unknown controller takes every slot and logs a warning
  instead of silently borrowing slot 0); an all-skipped battery
  reports as skip, not "0/0" failure; slow-body polls (mtp, printer,
  disk read) go through a shared deadline-based wait_until so their
  bodies count against the enum budget; throughput's FS detection
  compares serials case-insensitively like every other walk; a missing
  MSC read-speed line now fails the host msc_file_explorer test
  instead of passing with an empty metric.

Hardening:
- fail fast (15 s) when a driver-registry sysfs write blocks: a wedged
  device otherwise turns every subsequent battery into an unkillable
  D-state writer and silently hangs the whole run
- usb-recover skill: a VM reboot is not a reliable cure (MosChip hubs
  latch up across the PCIe reset); full host power cycle is

Co-Authored-By: Claude Fable 5 &lt;noreply@anthropic.com&gt;
Claude-Session: https://claude.ai/code/session_01HeF2gZ1M7GWkz6Av4BpKPg
</content>
</entry>
<entry>
<title>docs: add build-doc tooling and a README for every example</title>
<updated>2026-06-29T03:16:25Z</updated>
<author>
<name>hathach</name>
<email>thach@tinyusb.org</email>
</author>
<published>2026-06-29T03:16:25Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=4b1c8d16f72bb5d8f2eb8a2e8dde35abdd2f2a88'/>
<id>urn:sha1:4b1c8d16f72bb5d8f2eb8a2e8dde35abdd2f2a88</id>
<content type='text'>
Documentation tooling:
- Add the `build-doc` skill and `tools/build_doc.py` wrapper for local
  Sphinx builds (clean / -W / open).
- Enable Markdown (MyST) in conf.py and auto-collect
  examples/{device,host,dual}/*/README.md into a 3-level Examples nav
  (Examples &gt; Device/Host/Dual &gt; example), noting each page's source
  location and normalizing headings to a single H1.
- Remove the stale `.claude/commands/build-doc.md`; point the AGENTS.md
  Documentation section at the skill.

Example docs:
- Add a README.md for every device/host/dual example: what it does, USB
  interface table, notable tusb_config.h settings, generic CMake + Make
  build steps, and how to try it.
- Fold each *_freertos variant into its base README, noting the FreeRTOS
  source path and any RTOS-specific behavior.

Generated docs/examples/ output is git-ignored. Builds clean with
`sphinx-build -W`.

Co-Authored-By: Claude Opus 4.8 (1M context) &lt;noreply@anthropic.com&gt;
</content>
</entry>
<entry>
<title>Merge remote-tracking branch 'origin/master' into stm32c5</title>
<updated>2026-06-11T10:20:15Z</updated>
<author>
<name>hathach</name>
<email>thach@tinyusb.org</email>
</author>
<published>2026-06-11T10:20:15Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=5145b67f7946763ca04954f5494bfa88eec2acad'/>
<id>urn:sha1:5145b67f7946763ca04954f5494bfa88eec2acad</id>
<content type='text'>
# Conflicts:
#	README.rst
</content>
</entry>
<entry>
<title>ultrareview nits: keep xfer_result table in sync, hoist blinky loop</title>
<updated>2026-06-01T03:05:17Z</updated>
<author>
<name>hathach</name>
<email>thach@tinyusb.org</email>
</author>
<published>2026-06-01T03:05:17Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=7e0fcaa41ee9330274808d88e5211bdbe37511a4'/>
<id>urn:sha1:7e0fcaa41ee9330274808d88e5211bdbe37511a4</id>
<content type='text'>
- src/tusb.c: extend tu_str_xfer_result[] with "ABORTED" and "INVALID"
  to match the new enum size. Not reachable today (no HCD posts those
  values through hcd_event_xfer_complete), but keeps the enum/table
  invariant intact so future HCDs that surface ABORTED don't index OOB.

- examples/dual/dynamic_switch/src/main.c: apply the same while(1)
  hoist already done for cdc_task / print_devinfo_task to
  led_blinking_task. On OS_NONE the loop returned mid-iteration, which
  on first call could fire multiple back-to-back toggles while
  start_ms (initially 0) caught up to uptime.

Co-Authored-By: Claude Opus 4.7 &lt;noreply@anthropic.com&gt;
</content>
</entry>
<entry>
<title>dynamic_switch: hoist while(1) out for OS_NONE</title>
<updated>2026-05-29T17:52:22Z</updated>
<author>
<name>hathach</name>
<email>thach@tinyusb.org</email>
</author>
<published>2026-05-29T17:52:22Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=a64eb336c4a8d3f9c160aa30b81033e3ad7227d8'/>
<id>urn:sha1:a64eb336c4a8d3f9c160aa30b81033e3ad7227d8</id>
<content type='text'>
Sonar flagged the loop body as executing only once on OS_NONE because
the OS_NONE branch returns inside the first iteration (main() drives
the task again). Make the while(1) conditional on RTOS so the OS_NONE
build is a straight-line function with no misleading loop.

Co-Authored-By: Claude Opus 4.7 &lt;noreply@anthropic.com&gt;
</content>
</entry>
<entry>
<title>abstract OS logic with `CFG_TUSB_OS_HAS_SCHEDULER` to simplify conditional checks</title>
<updated>2026-05-28T11:23:46Z</updated>
<author>
<name>hathach</name>
<email>thach@tinyusb.org</email>
</author>
<published>2026-05-28T11:23:46Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=c5676382c7d5cad7b6cfe5dc185d9891b89241f2'/>
<id>urn:sha1:c5676382c7d5cad7b6cfe5dc185d9891b89241f2</id>
<content type='text'>
</content>
</entry>
<entry>
<title>remove sync() in tinyusb callback since it cause issue with RTOS when usbh task is blocking</title>
<updated>2026-05-28T11:20:22Z</updated>
<author>
<name>hathach</name>
<email>thach@tinyusb.org</email>
</author>
<published>2026-05-28T11:20:22Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=c954c8c4c70df616e429d8e7ae1c382d3043acea'/>
<id>urn:sha1:c954c8c4c70df616e429d8e7ae1c382d3043acea</id>
<content type='text'>
</content>
</entry>
<entry>
<title>add stm32c5 support</title>
<updated>2026-05-10T12:17:00Z</updated>
<author>
<name>HiFiPHile</name>
<email>admin@hifiphile.com</email>
</author>
<published>2026-05-09T23:47:21Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=5ea1979e290ed80430a5b65b56534373ecbdd56f'/>
<id>urn:sha1:5ea1979e290ed80430a5b65b56534373ecbdd56f</id>
<content type='text'>
Signed-off-by: HiFiPHile &lt;admin@hifiphile.com&gt;
</content>
</entry>
<entry>
<title>replace `TUD_ENDPOINT_ONE_DIRECTION_ONLY` with `CFG_TUD_ENDPOINT_ONE_DIRECTION_ONLY` for improved configuration consistency across examples and core sources</title>
<updated>2026-04-21T04:26:51Z</updated>
<author>
<name>hathach</name>
<email>thach@tinyusb.org</email>
</author>
<published>2026-04-21T04:26:51Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=f9e79844edd9757243c786c9e901cfba3f281b6b'/>
<id>urn:sha1:f9e79844edd9757243c786c9e901cfba3f281b6b</id>
<content type='text'>
</content>
</entry>
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