<feed xmlns='http://www.w3.org/2005/Atom'>
<title>tinyusb.git/examples/device/cdc_msc_freertos/src, 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/cdc_msc_freertos/src?h=master</id>
<link rel='self' href='http://cgit.235523.xyz/tinyusb.git/atom/examples/device/cdc_msc_freertos/src?h=master'/>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/'/>
<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 typo in CDC stack size constant</title>
<updated>2026-05-26T14:47:12Z</updated>
<author>
<name>Phozer</name>
<email>55053232+Phozer@users.noreply.github.com</email>
</author>
<published>2026-05-26T14:47:12Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=4ba1c39a225ee4ee96e8449f70bf0ba06be62753'/>
<id>urn:sha1:4ba1c39a225ee4ee96e8449f70bf0ba06be62753</id>
<content type='text'>
</content>
</entry>
<entry>
<title>max32 change bulk endpoint to EP8,9 (2KB FIFO) and Audio ISO to EP10, 11 (4KB FIFO)</title>
<updated>2026-04-26T04:42:52Z</updated>
<author>
<name>hathach</name>
<email>thach@tinyusb.org</email>
</author>
<published>2026-04-26T03:34:50Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=dd107171535c20272e80e2b11e3bc2a368f531d3'/>
<id>urn:sha1:dd107171535c20272e80e2b11e3bc2a368f531d3</id>
<content type='text'>
</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>
<entry>
<title>get freertos working with rp2040</title>
<updated>2026-04-14T03:51:20Z</updated>
<author>
<name>hathach</name>
<email>thach@tinyusb.org</email>
</author>
<published>2026-04-14T03:51:20Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=44b0ee05390b0f97d006a016b25fa513699e0a96'/>
<id>urn:sha1:44b0ee05390b0f97d006a016b25fa513699e0a96</id>
<content type='text'>
</content>
</entry>
<entry>
<title>refactor(vendor/cdc): add CFG_TUD_CDC_RX_NEED_ZLP and CFG_TUD_VENDOR_RX_NEED_ZLP</title>
<updated>2026-03-12T05:25:59Z</updated>
<author>
<name>hathach</name>
<email>thach@tinyusb.org</email>
</author>
<published>2026-03-12T05:16:57Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=aea4f6046e9a07d5f169de9fcc31bca2b667ea45'/>
<id>urn:sha1:aea4f6046e9a07d5f169de9fcc31bca2b667ea45</id>
<content type='text'>
</content>
</entry>
<entry>
<title>refactor(config): separate endpoint buffer sizes into RX and TX definitions for clarity and flexibility</title>
<updated>2026-03-12T04:43:32Z</updated>
<author>
<name>hathach</name>
<email>thach@tinyusb.org</email>
</author>
<published>2026-03-12T04:43:32Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=78bbc7dc2e80daba79351bc37e11b13243fd6f8c'/>
<id>urn:sha1:78bbc7dc2e80daba79351bc37e11b13243fd6f8c</id>
<content type='text'>
</content>
</entry>
<entry>
<title>add IAR warning flags to cmake build and fix them</title>
<updated>2026-03-05T16:24:14Z</updated>
<author>
<name>hathach</name>
<email>thach@tinyusb.org</email>
</author>
<published>2026-03-05T16:24:14Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=61e4b9ce3fba2fea731396c56eee1c7b5a2f5338'/>
<id>urn:sha1:61e4b9ce3fba2fea731396c56eee1c7b5a2f5338</id>
<content type='text'>
</content>
</entry>
<entry>
<title>example: update comment on CDC EP size</title>
<updated>2026-01-19T09:53:48Z</updated>
<author>
<name>Zixun LI</name>
<email>admin@hifiphile.com</email>
</author>
<published>2026-01-19T09:53:48Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=7921aae6e2f824e217a5cb3da1337876bfd9d3a9'/>
<id>urn:sha1:7921aae6e2f824e217a5cb3da1337876bfd9d3a9</id>
<content type='text'>
Signed-off-by: Zixun LI &lt;admin@hifiphile.com&gt;
</content>
</entry>
<entry>
<title>Merge pull request #3271 from karlp/pr/examplesd-freertos-stacks</title>
<updated>2025-10-30T07:21:24Z</updated>
<author>
<name>Ha Thach</name>
<email>thach@tinyusb.org</email>
</author>
<published>2025-10-30T07:21:24Z</published>
<link rel='alternate' type='text/html' href='http://cgit.235523.xyz/tinyusb.git/commit/?id=813eba22c146f85c924717c458b20bd3d9d5d3b0'/>
<id>urn:sha1:813eba22c146f85c924717c458b20bd3d9d5d3b0</id>
<content type='text'>
examples/device/*_freertos: expand stack size when needed</content>
</entry>
</feed>
