// Package device abstracts the Lian Li Galahad II LCD hardware. The streamer
// depends only on the Device interface, so tests can substitute a fake and
// future hardware can be supported by adding new implementations.
package device

import (
	"context"
	"errors"
)

// Device sends H.264 frames to a display. Implementations must be safe for
// sequential use by a single goroutine.
type Device interface {
	// WriteFrame transmits one encoded access unit to the display.
	WriteFrame(ctx context.Context, frame []byte) error
	// Close releases all hardware resources.
	Close() error
}

// ErrNotFound is returned when no matching USB device is present.
var ErrNotFound = errors.New("device not found")