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replace uint32 in MaxPacketSize with int

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This commit is contained in:
Sebastian Zagrodzki
2017-04-26 22:27:12 +02:00
parent 22ff844a3d
commit 93355e7490
4 changed files with 9 additions and 10 deletions
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11
usb/transfer.go
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@@ -112,14 +112,13 @@ func (t *usbTransfer) data() []byte {
// newUSBTransfer allocates a new transfer structure for communication with a
// given device/endpoint, with buf as the underlying transfer buffer.
func newUSBTransfer(dev *libusbDevHandle, ei *EndpointInfo, buf []byte, timeout time.Duration) (*usbTransfer, error) {
var isoPackets int
var isoPktSize uint32
var isoPackets, isoPktSize int
if ei.TransferType == TransferTypeIsochronous {
isoPktSize = ei.MaxPacketSize
if len(buf) < int(isoPktSize) {
isoPktSize = uint32(len(buf))
if len(buf) < isoPktSize {
isoPktSize = len(buf)
}
isoPackets = len(buf) / int(isoPktSize)
isoPackets = len(buf) / isoPktSize
debug.Printf("New isochronous transfer - buffer length %d, using %d packets of %d bytes each", len(buf), isoPackets, isoPktSize)
}
@@ -130,7 +129,7 @@ func newUSBTransfer(dev *libusbDevHandle, ei *EndpointInfo, buf []byte, timeout
}
if ei.TransferType == TransferTypeIsochronous {
libusb.setIsoPacketLengths(xfer, isoPktSize)
libusb.setIsoPacketLengths(xfer, uint32(isoPktSize))
}
t := &usbTransfer{