Documentation
¶
Overview ¶
Package screenusbhost isolates EPS2 USB I/O in one bounded child process. One caller owns readiness, sending and session reset. Close may be concurrent. No display frame or private lease is passed to the child as process arguments.
Index ¶
- Variables
- func ProxyExitCode(err error) int
- func SerialProxy(name string, input io.Reader, output io.Writer) (result error)
- type Sender
- func (s *Sender) Changed() <-chan struct{}
- func (s *Sender) Close() error
- func (s *Sender) ConfigurePartial(policy refreshpolicy.Policy) error
- func (s *Sender) ConfigureRefresh(policy refreshpolicy.Policy) error
- func (s *Sender) Inspect(ctx context.Context) (Snapshot, error)
- func (s *Sender) InspectPanel(ctx context.Context) (screenwire.PanelStatus, error)
- func (s *Sender) ResetSession()
- func (s *Sender) Send(ctx context.Context, frame display.Frame) error
- func (s *Sender) SendRegion(ctx context.Context, plan screendelivery.RegionPlan, ...) error
- func (s *Sender) SendWithOptions(ctx context.Context, frame display.Frame, options refreshpolicy.Options) error
- func (s *Sender) WaitReady(ctx context.Context) (screendelivery.Readiness, error)
- type Snapshot
Constants ¶
This section is empty.
Variables ¶
Functions ¶
func ProxyExitCode ¶
ProxyExitCode emits only a fixed, non-secret category from the supervised CLI. Unknown failures retain exit1; older workers remain compatible with the parent.
func SerialProxy ¶
SerialProxy is the supervised child's only operation: one open CDC port, complete bounded EPS2 records, no rendering, fallback, retry or stdout text. The parent must supervise it: serial.Close alone does not bound kernel writes.
Types ¶
type Sender ¶
type Sender struct {
// contains filtered or unexported fields
}
func New ¶
New takes trusted local paths and expected logical geometry. No enrollment is required for trusted physical USB; capabilities still validate EPS2 semantics.
func (*Sender) ConfigurePartial ¶
func (s *Sender) ConfigurePartial(policy refreshpolicy.Policy) error
func (*Sender) ConfigureRefresh ¶
func (s *Sender) ConfigureRefresh(policy refreshpolicy.Policy) error
func (*Sender) Inspect ¶
Inspect performs read-only Hello and Health without acquiring or binding a lease. Opening USB/DTR still invokes normal USB priority and may abort an incomplete Wi-Fi upload. It never renders, uploads, refreshes or retries.
func (*Sender) InspectPanel ¶
func (s *Sender) InspectPanel(ctx context.Context) (screenwire.PanelStatus, error)
InspectPanel reads one cached trace without retries or a screen lease. USB opening still has the existing DTR/priority effects, as documented by Inspect. Unsupported old firmware returns an error; absence is never a zero trace.
func (*Sender) ResetSession ¶
func (s *Sender) ResetSession()
ResetSession is explicit permission to abandon unproven state, not permission to resend. The owner must invalidate its baseline before calling this method.
func (*Sender) SendRegion ¶
func (s *Sender) SendRegion(ctx context.Context, plan screendelivery.RegionPlan, options refreshpolicy.Options) error
func (*Sender) SendWithOptions ¶
type Snapshot ¶
type Snapshot struct {
Capabilities screenwire.Capabilities
Health screenwire.HealthStatus
Status screenwire.Status
}
Source Files