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<title>tinyusb.git/examples/device/dfu_runtime/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/dfu_runtime/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>clean up</title>
<updated>2025-11-19T05:19:08Z</updated>
<author>
<name>hathach</name>
<email>thach@tinyusb.org</email>
</author>
<published>2025-11-19T04:56:53Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=1df116adfc70bb6d86f6046b46560d5c42762c28'/>
<id>urn:sha1:1df116adfc70bb6d86f6046b46560d5c42762c28</id>
<content type='text'>
</content>
</entry>
<entry>
<title>Merge branch 'refs/heads/master' into dwc2_ep0</title>
<updated>2025-11-19T04:32:44Z</updated>
<author>
<name>hathach</name>
<email>thach@tinyusb.org</email>
</author>
<published>2025-11-19T04:32:44Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=fd3161087d76c84fb21e8e2f2d30a81d6b11bfba'/>
<id>urn:sha1:fd3161087d76c84fb21e8e2f2d30a81d6b11bfba</id>
<content type='text'>
# Conflicts:
#	examples/device/dfu/src/usb_descriptors.c
#	examples/device/dfu_runtime/src/usb_descriptors.c
#	src/device/usbd_control.c
#	src/portable/synopsys/dwc2/dcd_dwc2.c
</content>
</entry>
<entry>
<title>added .clang-format</title>
<updated>2025-11-05T10:34:27Z</updated>
<author>
<name>hathach</name>
<email>thach@tinyusb.org</email>
</author>
<published>2025-11-05T08:31:02Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=1f04fe7924e8777c1583323171c0e1cabcb29062'/>
<id>urn:sha1:1f04fe7924e8777c1583323171c0e1cabcb29062</id>
<content type='text'>
fix more alerts
disable IAR CStat since pvs-studio check is better integrated with clion
</content>
</entry>
<entry>
<title>Merge branch 'master' into dwc2_ep0</title>
<updated>2025-10-29T13:32:50Z</updated>
<author>
<name>hathach</name>
<email>thach@tinyusb.org</email>
</author>
<published>2025-10-29T13:30:35Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=4da7845747497ac93794d9a3bcfabaeebef933d1'/>
<id>urn:sha1:4da7845747497ac93794d9a3bcfabaeebef933d1</id>
<content type='text'>
# Conflicts:
#	examples/device/dfu/src/usb_descriptors.c
#	examples/device/dfu_runtime/src/usb_descriptors.c
#	src/portable/synopsys/dwc2/dcd_dwc2.c
</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>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=a12806a6cd65b11476cde69628f92f64978f1c64'/>
<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>example/dfu: add MSOS 2.0 descriptor for auto driver loading</title>
<updated>2025-10-10T12:01:22Z</updated>
<author>
<name>HiFiPhile</name>
<email>admin@hifiphile.com</email>
</author>
<published>2025-10-10T11:47:11Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=c566db87b32a412f2a2739c4706446e132c26369'/>
<id>urn:sha1:c566db87b32a412f2a2739c4706446e132c26369</id>
<content type='text'>
Signed-off-by: HiFiPhile &lt;admin@hifiphile.com&gt;
</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>
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