[BUG]odroid-c2 does not hotplug usb-devices

[Otto Meier]

Hi Martin,

i have tried your second notice. but it does'nt solve the issue.
if at leased on device is pluged in new devices are detected. if
all devices have been removed, no new device will be detected anymore.

Best regards

Otto

Am 05.12.20 um 12:54 schrieb Martin Blumenstingl:
> Hi Otto,
>
> On Sat, Nov 28, 2020 at 6:10 PM Otto Meier <gf435 at gmx.net> wrote:
>> Hello,
>>
>> I run an Odroid-c2 with newest kernel 5.10.0-rc5
>> usb recognises usb devices only when they are plugged in before boot.
>> after boot plugged in devices get not recognized.
>>
>> Any idea where to search for a fix?
> there are two answers to this:
> - this was fixed two years ago with upstream commit cc10ce0c51b13d [0]
> - I think it broke again. off-list I received a hint from a user that
> setting kernel cmdline parameter usbcore.autosuspend=-1 works around
> this issue. can you please try this? if it fixes USB hotplug for you
> then this needs to be reported to the USB maintainers
>
>
> Best regards
> Martin
>
>
> [0] https://github.com/torvalds/linux/commit/cc10ce0c51b13d1566d0ec1dcb472fb86330b391
>