Fix remotewakeup of PJRC stack(Fix #121)

- without this fix wakeup often fails
- keyboard can wakeup once or twice but fails after that

diff --git a/protocol/pjrc/usb.c b/protocol/pjrc/usb.c
index 2b267d48004199e581aa16bce0bf53656eda3cfd..1e6ba8719a2a124ef687e63916bc30dd037df120 100644 (file)
--- a/protocol/pjrc/usb.c
+++ b/protocol/pjrc/usb.c
@@ -629,6 +629,7 @@ uint8_t usb_configured(void)
 void usb_remote_wakeup(void)
 {
     UDCON |= (1<<RMWKUP);
+    while (UDCON & (1<<RMWKUP));
 }