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<title>tinyusb.git/examples/device/hid_composite/src/usb_descriptors.c, branch master</title>
<subtitle>Unnamed repository; edit this file 'description' to name the repository.</subtitle>
<id>http://cgit.235523.xyz/tinyusb.git/atom/examples/device/hid_composite/src/usb_descriptors.c?h=master</id>
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<updated>2026-07-14T06:22:48Z</updated>
<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>fix Identifiers that start with '__' or '_[A-Z]' are reserved.</title>
<updated>2025-10-28T07:14:01Z</updated>
<author>
<name>hathach</name>
<email>thach@tinyusb.org</email>
</author>
<published>2025-10-28T06:21:38Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=d92b810df7670aae0e195fd02abef5014470c2f7'/>
<id>urn:sha1:d92b810df7670aae0e195fd02abef5014470c2f7</id>
<content type='text'>
fix compiling with nuc family
</content>
</entry>
<entry>
<title>fix descriptor warning when shifting zero</title>
<updated>2025-10-27T17:17:26Z</updated>
<author>
<name>hathach</name>
<email>thach@tinyusb.org</email>
</author>
<published>2025-10-27T17:17:26Z</published>
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<id>urn:sha1:a12806a6cd65b11476cde69628f92f64978f1c64</id>
<content type='text'>
</content>
</entry>
<entry>
<title>fix several warnings</title>
<updated>2025-10-24T06:04:49Z</updated>
<author>
<name>hathach</name>
<email>thach@tinyusb.org</email>
</author>
<published>2025-10-24T06:04:49Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=f39dcae9f1bed1dfcfb239f76677ef980a9976c9'/>
<id>urn:sha1:f39dcae9f1bed1dfcfb239f76677ef980a9976c9</id>
<content type='text'>
</content>
</entry>
<entry>
<title>fix typos</title>
<updated>2025-10-02T10:15:22Z</updated>
<author>
<name>hathach</name>
<email>thach@tinyusb.org</email>
</author>
<published>2025-10-02T10:15:22Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=3773d60a1edb85b8f96800cd920b08b857f88390'/>
<id>urn:sha1:3773d60a1edb85b8f96800cd920b08b857f88390</id>
<content type='text'>
</content>
</entry>
<entry>
<title>add hid stylus pen device.</title>
<updated>2024-12-23T13:03:37Z</updated>
<author>
<name>Jay</name>
<email>33371449+jay94ks@users.noreply.github.com</email>
</author>
<published>2024-12-23T13:03:37Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=15b1623aa3b677100cb7e81bf05f0c3b481d355b'/>
<id>urn:sha1:15b1623aa3b677100cb7e81bf05f0c3b481d355b</id>
<content type='text'>
this works with android, for bypassing that absmouse does not support android.
note that, to hide cursor on android for every touch signal, find cursor option in android settings menu.

references:
1. https://stackoverflow.com/questions/28536602/hid-digitizer-descriptor-doesnt-perform-well-with-landscape-orientation
2. https://github.com/jonathanedgecombe/absmouse/blob/master/src/AbsMouse.cpp
</content>
</entry>
<entry>
<title>update all examples to use unique ID as serial if avaialble</title>
<updated>2023-08-04T03:28:24Z</updated>
<author>
<name>hathach</name>
<email>thach@tinyusb.org</email>
</author>
<published>2023-08-04T03:28:24Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=9697c4df4e57435781119c0d4716635f344ed8f1'/>
<id>urn:sha1:9697c4df4e57435781119c0d4716635f344ed8f1</id>
<content type='text'>
</content>
</entry>
<entry>
<title>fix trailing space and new line</title>
<updated>2023-03-17T09:12:49Z</updated>
<author>
<name>hathach</name>
<email>thach@tinyusb.org</email>
</author>
<published>2023-03-17T09:12:49Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=3623ba1884ddff23e9b64766cb6dd032f1425846'/>
<id>urn:sha1:3623ba1884ddff23e9b64766cb6dd032f1425846</id>
<content type='text'>
temporarily disable codespell
</content>
</entry>
<entry>
<title>fix most warnings with rp2040 -wconversion</title>
<updated>2022-06-27T04:50:17Z</updated>
<author>
<name>hathach</name>
<email>thach@tinyusb.org</email>
</author>
<published>2022-06-27T04:50:17Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=b9dc9dbd78ee1890342429502d585f323c480fc2'/>
<id>urn:sha1:b9dc9dbd78ee1890342429502d585f323c480fc2</id>
<content type='text'>
</content>
</entry>
<entry>
<title>add other speed descriptor callback tud_descriptor_other_speed_configuration_cb()</title>
<updated>2021-09-09T08:17:19Z</updated>
<author>
<name>hathach</name>
<email>thach@tinyusb.org</email>
</author>
<published>2021-09-09T07:34:03Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=f81368174b613f4168ddb0e2ec1822c8dbc31d59'/>
<id>urn:sha1:f81368174b613f4168ddb0e2ec1822c8dbc31d59</id>
<content type='text'>
example implement tud_descriptor_device_qualifier_cb() and
tud_descriptor_other_speed_configuration_cb() on high speed device to
fully compliant to usbcv
</content>
</entry>
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