有大佬试过V307的host吗？

[eddylin83]

用官方EVT板试了一下。FS下的host demo出现：

 \ | /
- RT -     Thread Operating System
 / | \     3.1.3 build Apr 21 2023
 2006 - 2019 Copyright by rt-thread team
Start usb host task...
ms[I/USB] Dev connect
h >[I/USB] Dev USB_SPEED_FULL
[I/USB] Dev connect
[I/USB] New full-speed device on Hub 1, Port 1 connected
[W/USB] Setup Timeout and retry
[W/USB] Setup Timeout and retry
[W/USB] Setup Timeout and retry
[W/USB] Setup Timeout and retry
[W/USB] Setup Timeout and retry
[W/USB] Setup Timeout and retry
[W/USB] Setup Timeout and retry
[W/USB] Setup Timeout and retry
[W/USB] Setup Timeout and retry
[W/USB] Setup Timeout and retry
[W/USB] Setup Timeout and retry
[W/USB] Setup Timeout and retry
[W/USB] Setup Timeout and retry
[W/USB] Setup Timeout and retry 
......
[E/USB] Failed to get device descriptor,errorcode:-116
[E/USB] Port 1 enumerate fail

但是运行官方的HOST_KM例程是可以成功枚举hub以及下级的鼠标的（鼠标插拔事件都正常）。

至于HS也会有bug，g_hub_intbuf[CONFIG_USBHOST_MAX_EXTHUBS + 1][1]需要改为g_hub_intbuf[CONFIG_USBHOST_MAX_EXTHUBS + 1][CONFIG_USB_ALIGN_SIZE]，不然hub使用的buf指针不对齐，出现IN DMA错误。不过HS可以成功枚举hub，但是hub接的鼠标又没有检测出来。

[HaiMianBBao]

不好意思，在用hub的时候确实有问题，等我后面有时间修复一下。

[sakumisu]

已记录，CONFIG_USB_ALIGN_SIZE 已经修改至主线，wch 的host功能还需要进一步的修改，请耐心等待。