[sam] prelimanary work on USB Device stack
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@ -230,7 +230,7 @@ int USB_Recv(u8 ep, void* d, int len)
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n = len;
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u8* dst = (u8*)d;
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while (n--)
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*dst++ = Recv8();
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*dst++ = USBD_Recv8();
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if (len && !FifoByteCount()) // release empty buffer
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ReleaseRX();
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