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Correct SET_INTERFACE request #59

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Correct SET_INTERFACE request #59

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456c0d5
USB: Check on the number of bytes to send to not send more than expec…
sylvainpelissier Aug 23, 2018
eb7eb86
Correct SET_INTERFACE request
sylvainpelissier Sep 4, 2018
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11 changes: 9 additions & 2 deletions cores/arduino/USB/USBCore.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -109,6 +109,7 @@ static const unsigned char test_packet_buffer[] = {
volatile uint32_t _usbConfiguration = 0;
volatile uint32_t _usbInitialized = 0;
uint32_t _usbSetInterface = 0;
uint32_t _usbAlternateSetting = 0;
uint32_t _cdcComposite = 0;

//==================================================================
Expand Down Expand Up @@ -229,6 +230,11 @@ int USBD_SendControl(uint8_t flags __attribute__ ((unused)), const void* d, uint

if (_cmark < _cend)
{
if (_cmark + len > _cend)
{
len = _cend - _cmark;
length = len;
}
while (len > 0)
{
sent = UDD_Send(EP0, data + pos, len);
Expand Down Expand Up @@ -795,8 +801,9 @@ static void USB_ISR(void)
}
else if (SET_INTERFACE == r)
{
_usbSetInterface = setup.wValueL;
TRACE_CORE(puts(">>> EP0 Int: SET_INTERFACE\r\n");)
_usbSetInterface = setup.wIndex;
_usbAlternateSetting = setup.wValueL;
TRACE_CORE(printf(">>> EP0 Int: SET_INTERFACE interface=%d alternateSetting=%d\r\n",_usbSetInterface, _usbAlternateSetting);)
}
}
else
Expand Down