Add tracing showing the port status register content each time the xhci roothub receives a Get Port Status request. Signed-off-by: Mathias Nyman <mathias.nyman@xxxxxxxxxxxxxxx> --- drivers/usb/host/xhci-hub.c | 1 + drivers/usb/host/xhci-trace.h | 5 +++++ 2 files changed, 6 insertions(+) diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c index 64e1b9b..1a1856b 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -1076,6 +1076,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, retval = -ENODEV; break; } + trace_xhci_get_port_status(wIndex, temp); status = xhci_get_port_status(hcd, bus_state, port_array, wIndex, temp, flags); if (status == 0xffffffff) diff --git a/drivers/usb/host/xhci-trace.h b/drivers/usb/host/xhci-trace.h index 67ff314..6c093db 100644 --- a/drivers/usb/host/xhci-trace.h +++ b/drivers/usb/host/xhci-trace.h @@ -494,6 +494,11 @@ DEFINE_EVENT(xhci_log_portsc, xhci_handle_port_status, TP_ARGS(portnum, portsc) ); +DEFINE_EVENT(xhci_log_portsc, xhci_get_port_status, + TP_PROTO(u32 portnum, u32 portsc), + TP_ARGS(portnum, portsc) +); + DECLARE_EVENT_CLASS(xhci_dbc_log_request, TP_PROTO(struct dbc_request *req), TP_ARGS(req), -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
