Simplify windows dfu routines.
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b0af2a7d28
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480c612650
@ -88,18 +88,17 @@ static status_t status;
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static int dev_request(int request, int value, int index)
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static int dev_request(int request, int value, int index)
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{
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{
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int rqlen = sizeof(CNTRPIPE_RQ);
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CNTRPIPE_RQ rq;
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PCNTRPIPE_RQ rq = alloca(rqlen);
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DWORD nbytes = 0;
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DWORD nbytes = 0;
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rq->Function = URB_FUNCTION_CLASS_INTERFACE;
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rq.Function = URB_FUNCTION_CLASS_INTERFACE;
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rq->Direction = VENDOR_DIRECTION_OUT;
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rq.Direction = VENDOR_DIRECTION_OUT;
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rq->Request = request;
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rq.Request = request;
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rq->Value = value;
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rq.Value = value;
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rq->Index = index;
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rq.Index = index;
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rq->Length = 0;
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rq.Length = 0;
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if (!DeviceIoControl(dev, PU_VENDOR_REQUEST, rq, rqlen,
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if (!DeviceIoControl(dev, PU_VENDOR_REQUEST, &rq, sizeof(rq),
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NULL, 0, &nbytes, NULL)) {
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NULL, 0, &nbytes, NULL)) {
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return -1;
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return -1;
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}
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}
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@ -130,18 +129,17 @@ static int dev_write(int request, int value, int length, PBYTE data)
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static int dev_read(int request, int value, int length, PBYTE buffer)
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static int dev_read(int request, int value, int length, PBYTE buffer)
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{
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{
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int rqlen = sizeof(CNTRPIPE_RQ);
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CNTRPIPE_RQ rq;
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PCNTRPIPE_RQ rq = alloca(rqlen);
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DWORD nbytes = 0;
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DWORD nbytes = 0;
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rq->Function = URB_FUNCTION_CLASS_INTERFACE;
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rq.Function = URB_FUNCTION_CLASS_INTERFACE;
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rq->Direction = VENDOR_DIRECTION_IN;
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rq.Direction = VENDOR_DIRECTION_IN;
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rq->Request = request;
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rq.Request = request;
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rq->Value = value;
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rq.Value = value;
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rq->Index = 0;
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rq.Index = 0;
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rq->Length = length;
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rq.Length = length;
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if (!DeviceIoControl(dev, PU_VENDOR_REQUEST, rq, rqlen,
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if (!DeviceIoControl(dev, PU_VENDOR_REQUEST, &rq, sizeof(rq),
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buffer, length, &nbytes, NULL)) {
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buffer, length, &nbytes, NULL)) {
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return -1;
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return -1;
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}
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}
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