GadgetFS Looping does not reconnect when removed

[MorganAbrams]

Hi,

On Compute Module 4, when you have a stable connection with a windows machine. If you remove the connection. Then plug it into a new pc or back into the same machine it will not reconnect.

I've traced it to in here handle_ep0(usb_gadget * ctx). It seems to be going in an infinite loop on trying to reconnect with the timeout.tv_sec

[jfdelnero]

Are you using the FunctionFs or the GadgetFS mode ?

[MorganAbrams]

GadgetFS mode

[MorganAbrams]

So finally got the debug information finally posting now. So I have more information to share.

While running and connected we get these messages

handle_ep0 : Entering...
handle_ep0 : 1 event(s)
handle_ep0 : EP0 CONNECT EVENT
handle_ep0 : Select without timeout

Then repeats below:
handle_ep0 : 1 event(s)
handle_ep0 : EP0 SETUP event
handle_ep0 : Select without timeout

When we disconnect we get the messages:
handle_ep0 : 1 event(s)
handle_ep0 : EP0 SUSPEND event
handle_ep0 : Select without timeout

handle_ep0 : EP0 DISCONNECT event
handle_ep0 : Leaving (ctx_>stop=1)...

Then we get these messages repeating
uMTP Responder : Disconnected
handle_ep0 : Entering...

Then when we plug in again we get these messages
handle_ep0 : 1 event(s)
handle_ep0 : EP0 CONNECT event
handle_ep0 : Select without timeout

Then a repeat of this message 6 times total
handle_ep0 : 1 event(s)
handle_ep0 : EP0 SETUP event
handle_ep0 : Select without timeout

Then after we get this message and it just stops
handle_ep0 : 1 event(s)
handle_ep0 : EP0 SUSPEND event
handle_ep0 : Select without timeout

[jfdelnero]

Can you try the functionfs mode ?

[MorganAbrams]

Trying with FunctionFS mode right now. Works perfectly. Can unplug and plug it in anywhere else and connects right away with no issues.