Hi Thinh, On Linux kernel v6.3 Test procedure: - modprobe g_zero - Connect to PC host - systemctl suspend A large delay of 3 seconds is observed. The delay comes from dwc3_gadget_suspend()->dwc3_gadget_run_stop() waiting for DWC3_DSTS_DEVCTRLHLT to be set. It returns -ETIMEDOUT. Are we missing something to do a clean stop during suspend? FYI. Unloading g_zero does not show this delay on stop. cheers, -roger
