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Per http://www.beyondlogic.org/usbnutshell/usb5.shtml#EndpointDescriptors:

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bits 0-3 are endpoint number, 4-6 reserved, set to zero, bit 7 is
direction. Bits 0-3 is 0x0f.
This commit is contained in:
Sebastian Zagrodzki
2017-02-08 22:35:45 +01:00
parent 1755936932
commit a19ac0f654
1 changed files with 1 additions and 1 deletions
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2
usb/constants.go
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@@ -87,7 +87,7 @@ func (dt DescriptorType) String() string {
type EndpointDirection uint8
const (
ENDPOINT_NUM_MASK = 0x03
ENDPOINT_NUM_MASK = 0x0f
ENDPOINT_DIR_IN EndpointDirection = C.LIBUSB_ENDPOINT_IN
ENDPOINT_DIR_OUT EndpointDirection = C.LIBUSB_ENDPOINT_OUT
ENDPOINT_DIR_MASK EndpointDirection = 0x80