在 2021/11/4 0:53, Sean Anderson 写道:
On 9/16/21 3:02 AM, qianfangui...@163.com wrote:
From: qianfan Zhao <qianfangui...@163.com>
If the downloading file size is equal to the partition size, "fastboot
flash" can't work, at least in sunxi platform, because used an
uninitalized point: ep->desc.
Hm, I think that usb_ep_ops->enable needs to set ep->desc = desc on
success.
Of the existing drivers, only musb-new and mtu3 skip this.
I checked the udc driver and found that not all the udc driver set
"ep->desc = desc", such as atmel_usba_udc, dwc2_udc_otg, musb-new and
mtu3. Those drivers save "desc" to bsp driver's private data only, such
as "msub_ep->desc = desc", but the common usb_ep's desc is an invalid point.
And I'm not find any documents declare the behaves how
usb_ep_ops->enable did, save desc or not. So I'd prefect save desc in
the fastboot level, and the udc driver can also save desc again if they
want.
--Sean
