USB event poll support
This patch adds USB event poll support, which could be used in usbkbd
and other usb devices driver when the asynchronous interrupt
processing is supported.
Signed-off-by: Zhang Wei <wei.zhang@freescale.com
diff --git a/common/usb_kbd.c b/common/usb_kbd.c
index 56c2166..aec558a 100644
--- a/common/usb_kbd.c
+++ b/common/usb_kbd.c
@@ -129,7 +129,11 @@
static int usb_kbd_getc(void)
{
char c;
- while(usb_in_pointer==usb_out_pointer);
+ while(usb_in_pointer==usb_out_pointer) {
+#ifdef CFG_USB_EVENT_POLL
+ usb_event_poll();
+#endif
+ }
if((usb_out_pointer+1)==USB_KBD_BUFFER_LEN)
usb_out_pointer=0;
else