etc/init.qti.usb.debug.sh

#!/vendor/bin/sh
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prop_enabled=`getprop persist.vendor.usb.enable_ftrace 0`

# bail out if its perf config
if [ "$prop_enabled" == "0" -a ! -d /sys/module/msm_rtb ]; then
    return
fi

# Enable various ftrace debugging events for USB
tracefs=/sys/kernel/tracing

if [ -d $tracefs ]; then
    mkdir $tracefs/instances/usb

    # dwc3
    echo 1 > $tracefs/instances/usb/events/dwc3/dwc3_complete_trb/enable
    echo 1 > $tracefs/instances/usb/events/dwc3/dwc3_ctrl_req/enable
    echo 1 > $tracefs/instances/usb/events/dwc3/dwc3_ep_dequeue/enable
    echo 1 > $tracefs/instances/usb/events/dwc3/dwc3_ep_queue/enable
    echo 1 > $tracefs/instances/usb/events/dwc3/dwc3_gadget_ep_cmd/enable
    echo 1 > $tracefs/instances/usb/events/dwc3/dwc3_gadget_ep_disable/enable
    echo 1 > $tracefs/instances/usb/events/dwc3/dwc3_gadget_ep_enable/enable
    echo 1 > $tracefs/instances/usb/events/dwc3/dwc3_gadget_giveback/enable
    echo 1 > $tracefs/instances/usb/events/dwc3/dwc3_prepare_trb/enable
    echo 1 > $tracefs/instances/usb/events/dwc3/dwc3_event/enable

    # ucsi
    echo 1 > $tracefs/instances/usb/events/ucsi/ucsi_connector_change/enable
    echo 1 > $tracefs/instances/usb/events/ucsi/ucsi_reset_ppm/enable
    echo 1 > $tracefs/instances/usb/events/ucsi/ucsi_run_command/enable

    #USB gadget
    echo 1 > $tracefs/instances/usb/events/gadget/usb_gadget_disconnect/enable
    echo 1 > $tracefs/instances/usb/events/gadget/usb_gadget_connect/enable
    echo 1 > $tracefs/instances/usb/events/gadget/usb_gadget_vbus_draw/enable

    echo 1 > $tracefs/instances/usb/tracing_on
fi