| // Copyright 2021 The Chromium OS Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| package serial |
| |
| import ( |
| "context" |
| ) |
| |
| // Port represends a serial port and its basic operations. |
| type Port interface { |
| // Read bytes into buffer and return number of bytes read. |
| // Bytes already written to the port shall be moved into buf, up to its size. |
| Read(ctx context.Context, buf []byte) (n int, err error) |
| // Write bytes from buffer and return number of bytes written. |
| // It returns a non-nil error when n != len(b), nil otherwise. |
| Write(ctx context.Context, buf []byte) (n int, err error) |
| // Flush un-read/written bytes. |
| Flush(ctx context.Context) error |
| // Close closes the port. |
| Close(ctx context.Context) error |
| } |
