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Per-case table: direction convention, what the host verifies, and which
device/DCD path each case stresses (EP0 storms, sg queue pressure, unlink,
halt/toggle semantics, iso frame deadlines, throughput).
Co-Authored-By: Claude Fable 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01HeF2gZ1M7GWkz6Av4BpKPg
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Gadget-Zero parity: alt 0 carries no endpoints, alt 1 the full set (bulk
+ interrupt + iso IN/OUT, iso FS 128B / HS 512B). The host usbtest driver
skips pipe-less altsettings and selects alt 1 itself, so no usbtest
module parameters are needed.
The complete 30-case battery (all four tiers) passes on stm32f407disco,
stm32f723disco, stm32h743nucleo and stm32l476disco, including the ch9
case which now exercises 256 consecutive SET_INTERFACE cycles.
Co-Authored-By: Claude Fable 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01HeF2gZ1M7GWkz6Av4BpKPg
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The host usbtest driver collects interrupt pipes from the same altsetting
as the bulk pair, so the interface grows to 4 endpoints (hand-rolled
descriptor: bulk IN/OUT + interrupt IN/OUT, FS 64B interval 1 / HS 512B
interval 4) using the vendor class with CFG_TUD_VENDOR_EP_INT_OUT/IN. The
interrupt pumps mirror the bulk ones: poll + re-arm from callbacks,
self-healing across the halt tests.
Full tier-3 battery (26 cases, now incl. 25/26 interrupt write/read)
passes on stm32f407disco, stm32f723disco, stm32h743nucleo and
stm32l476disco.
Co-Authored-By: Claude Fable 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01HeF2gZ1M7GWkz6Av4BpKPg
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Gadget-Zero ctrl_out protocol: 0x5b stores the host's wLength bytes in a
1 KiB buffer (multi-packet EP0 data stage), 0x5c returns them for
comparison. bcdDevice now advertises tier 2 so the runner adds usbtest
cases 14/21. No descriptor change needed: ctrl_out is unlocked by the
Gadget Zero capability profile of the dynamic-id binding, not by
endpoints (interrupt/iso endpoints come with tiers 3/4).
Full tier-2 battery (24 cases) passes on stm32f407disco, stm32f723disco,
stm32h743nucleo and stm32l476disco.
Co-Authored-By: Claude Fable 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01HeF2gZ1M7GWkz6Av4BpKPg
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bulk source/sink)
Vendor interface with bulk IN source / bulk OUT sink implementing the
Gadget-Zero style protocol expected by the kernel usbtest driver.
Non-buffered vendor mode keeps every transfer an exact packet multiple so
the data-integrity cases never see an unexpected short packet, and polling
pumps self-heal after the endpoint-halt cases. Tier (bulk-only for now) is
advertised in bcdDevice for the host-side runner.
Co-Authored-By: Claude Fable 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01HeF2gZ1M7GWkz6Av4BpKPg
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