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Send an USB remote wakeup if data need to be written #5135

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Merged
merged 1 commit into from
Jul 21, 2016
Merged

Send an USB remote wakeup if data need to be written #5135

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8 changes: 7 additions & 1 deletion hardware/arduino/avr/cores/arduino/USBCore.cpp
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Original file line number Diff line number Diff line change
@@ -1,6 +1,7 @@


/* Copyright (c) 2010, Peter Barrett
/* Copyright (c) 2010, Peter Barrett
** Sleep/Wakeup support added by Michael Dreher
**
** Permission to use, copy, modify, and/or distribute this software for
** any purpose with or without fee is hereby granted, provided that the
Expand Down Expand Up @@ -266,6 +267,11 @@ int USB_Send(u8 ep, const void* d, int len)
if (!_usbConfiguration)
return -1;

if (_usbSuspendState & (1<<SUSPI)) {
//send a remote wakeup
UDCON |= (1 << RMWKUP);
}

int r = len;
const u8* data = (const u8*)d;
u8 timeout = 250; // 250ms timeout on send? TODO
Expand Down