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This commit is contained in:
Sebastian Zagrodzki
2017-04-09 19:18:11 +02:00
parent b09de1cf09
commit 54aed557d8
1 changed files with 4 additions and 0 deletions
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4
usb/endpoint.go
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@@ -20,6 +20,7 @@ import (
"time" "time"
) )
// Endpoint identifies a USB endpoint opened for transfer.
type Endpoint struct { type Endpoint struct {
h *libusbDevHandle h *libusbDevHandle
@@ -30,10 +31,12 @@ type Endpoint struct {
writeTimeout time.Duration writeTimeout time.Duration
} }
// String returns a human-readable description of the endpoint.
func (e *Endpoint) String() string { func (e *Endpoint) String() string {
return e.Info.String() return e.Info.String()
} }
// Read reads data from an IN endpoint.
func (e *Endpoint) Read(buf []byte) (int, error) { func (e *Endpoint) Read(buf []byte) (int, error) {
if e.Info.Direction != EndpointDirectionIn { if e.Info.Direction != EndpointDirectionIn {
return 0, fmt.Errorf("usb: read: not an IN endpoint") return 0, fmt.Errorf("usb: read: not an IN endpoint")
@@ -42,6 +45,7 @@ func (e *Endpoint) Read(buf []byte) (int, error) {
return e.transfer(buf, e.readTimeout) return e.transfer(buf, e.readTimeout)
} }
// Write writes data to an OUT endpoint.
func (e *Endpoint) Write(buf []byte) (int, error) { func (e *Endpoint) Write(buf []byte) (int, error) {
if e.Info.Direction != EndpointDirectionOut { if e.Info.Direction != EndpointDirectionOut {
return 0, fmt.Errorf("usb: write: not an OUT endpoint") return 0, fmt.Errorf("usb: write: not an OUT endpoint")