tinyusb.git/examples/device/cdc_msc/src/usb_descriptors.c, branch worktree-ch569-hydrausb3

Enable 4-packet bursts on CH569 SuperSpeed bulk endpoints

2026-07-07T05:28:45Z

- Default CFG_TUD_WCH_USB30_MAX_BURST to 4 (tusb_mcu.h): matches the link layer's header-packet buffer count (NUM_HP_BUF). Burst 8 fails to configure; the TeenyUSB-reported burst corruption quirk did not reproduce with per-burst DMA re-arm (50x MSC write/read-back and 256KB CDC echo integrity all clean at burst 4) - Bounce slots stay one max packet regardless of burst (bounced transfers cap their burst to the slot; zero-copy uses the full burst) so the RAMX pool no longer scales with burst size - cdc_msc/cdc_msc_throughput SS descriptors advertise bMaxBurst = CFG_TUD_WCH_USB30_MAX_BURST-1 via the CFG_EXAMPLE_SS_BULK_MAXBURST knob (0 for non-WCH SuperSpeed ports) Measured on HydraUSB3 v1 at 5 Gbps (HIL cdc_msc_throughput): MSC read 147 MBps write 127 MBps - about 2x the single-packet figures (raw dd: up to 163 MB/s read at 1M blocks). Co-Authored-By: Claude Fable 5

Add core SuperSpeed device support

2026-07-07T02:46:25Z

Groundwork for TinyUSB's first SuperSpeed port (WCH CH569): - TUSB_SPEED_SUPER, OPT_MODE_SUPER_SPEED, TUD_OPT_SUPER_SPEED and TUP_RHPORT_SUPERSPEED capability plumbing - Allow CFG_TUD_ENDPOINT0_SIZE 512 on SS builds; EP0 control transfers chunk at the runtime link speed (512 at SS, 64 on USB2 fallback) - Handle SET_SEL, SET_ISOCH_DELAY and U1/U2_ENABLE feature requests - Tolerate SS endpoint companion descriptors in usbd_open_edpt_pair, cdcd_open and mscd_open interface parsing - SS descriptor types/structs and template macros: endpoint companion, BOS USB2-extension + SuperSpeed capability, SS config and CDC/MSC/vendor SS variants (bulk fixed at 1024) - cdc_msc example: SS device/config/BOS descriptors, speed-aware sizes - Unit tests: SS endpoint validation, companion-tolerant endpoint pair open, SET_SEL, SET_ISOCH_DELAY All SS paths compile out when disabled: verified 0-byte code-size delta on stm32f407disco (MinSizeRel) vs master; 65/65 unit tests pass. Co-Authored-By: Claude Fable 5

musb implement double buffer for tx

2026-04-22T04:53:02Z

replace `TUD_ENDPOINT_ONE_DIRECTION_ONLY` with `CFG_TUD_ENDPOINT_ONE_DIRECTION_ONLY` for improved configuration consistency across examples and core sources

2026-04-21T04:26:51Z

fix Identifiers that start with '__' or '_[A-Z]' are reserved.

2025-10-28T07:14:01Z

fix compiling with nuc family

fix descriptor warning when shifting zero

2025-10-27T17:17:26Z

fix several warnings

2025-10-24T06:04:49Z

fix typos

2025-10-02T10:15:22Z

update cdc_msc/cdc_msc_freertos to also support notification

2025-07-03T07:28:19Z

rename TUD_ENDPOINT_EXCLUSIVE_NUMBER to TUD_ENDPOINT_ONE_DIRECTION_ONLY

2024-08-19T12:05:33Z