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Make all transfer types use a generic endpoint.transfer() function

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that uses libusb's asynchronous interface.
This commit is contained in:
Sebastian Zagrodzki
2017-02-10 22:06:57 +01:00
parent c9c2757fe6
commit 87abb704d7
3 changed files with 13 additions and 43 deletions
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9
usb/config.go
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@@ -38,14 +38,17 @@ func (e EndpointInfo) Number() int {
return int(e.Address) & ENDPOINT_NUM_MASK
}
func (e EndpointInfo) TransferType() TransferType {
return TransferType(e.Attributes) & TRANSFER_TYPE_MASK
}
func (e EndpointInfo) Direction() EndpointDirection {
return EndpointDirection(e.Address) & ENDPOINT_DIR_MASK
}
func (e EndpointInfo) String() string {
return fmt.Sprintf("Endpoint %d %-3s %s - %s %s [%d %d]",
e.Number(), e.Direction(),
TransferType(e.Attributes)&TRANSFER_TYPE_MASK,
e.Number(), e.Direction(), e.TransferType(),
IsoSyncType(e.Attributes)&ISO_SYNC_TYPE_MASK,
IsoUsageType(e.Attributes)&ISO_USAGE_TYPE_MASK,
e.MaxPacketSize, e.MaxIsoPacket,
@@ -135,7 +138,7 @@ func newConfig(dev *C.libusb_device, cfg *C.struct_libusb_config_descriptor) Con
RefreshRate: uint8(end.bRefresh),
SynchAddress: uint8(end.bSynchAddress),
}
if TransferType(ei.Attributes)&TRANSFER_TYPE_MASK == TRANSFER_TYPE_ISOCHRONOUS {
if ei.TransferType() == TRANSFER_TYPE_ISOCHRONOUS {
// bits 0-10 identify the packet size, bits 11-12 are the number of additional transactions per microframe.
// Don't use libusb_get_max_iso_packet_size, as it has a bug where it returns the same value
// regardless of alternative setting used, where different alternative settings might define different