>From the Raspberry Pi3 - With the patch removed:
U-Boot> setenv usb_pgood_delay 2000
U-Boot> usb reset
resetting USB...
Bus usb@7e980000: USB DWC2
scanning bus usb@7e980000 for devices... unable to get device descriptor
(error=-22)
6 USB Device(s) found
scanning usb for storage devices... 1 Storage Device(s) found
The only way I found to make it work reliably was to have it retry in the
usb_prepare_device().
Jason.
On 8/18/20 10:08 AM, Marek Vasut wrote:
> On 8/18/20 4:34 PM, Jason Wessel wrote:
>> I have found through testing some USB 2 composite mouse/keyboard
>> devices do not response to the usb_set_address call immediately
>> following the port reset. It can take anywhere from 2ms to 20ms.
>
> Does it work if you do
>
> => setenv usb_pgood_delay 2000
>
> before your test ?
>
