diff options
| -rw-r--r-- | cores/arduino/USBCore.cpp | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/cores/arduino/USBCore.cpp b/cores/arduino/USBCore.cpp index 3c6610c..62b90ed 100644 --- a/cores/arduino/USBCore.cpp +++ b/cores/arduino/USBCore.cpp @@ -425,13 +425,24 @@ static bool USB_SendStringDescriptor(const u8*string_P, u8 string_len, uint8_t f } // Does not timeout or cross fifo boundaries -// Will only work for transfers <= 64 bytes -// TODO int USB_RecvControl(void* d, int len) { - WaitOUT(); - Recv((u8*)d,len); - ClearOUT(); + auto length = len; + while(length) + { + // Dont receive more than the USB Control EP has to offer + // Use fixed 64 because control EP always have 64 bytes even on 16u2. + auto recvLength = length; + if(recvLength > 64){ + recvLength = 64; + } + + // Write data to fit to the end (not the beginning) of the array + WaitOUT(); + Recv((u8*)d + len - length, recvLength); + ClearOUT(); + length -= recvLength; + } return len; } |