Enum usb_device::bus::PollResult

source · [−]
pub enum PollResult {
    None,
    Reset,
    Data {
        ep_out: u16,
        ep_in_complete: u16,
        ep_setup: u16,
    },
    Suspend,
    Resume,
}
Expand description

Event and incoming packet information returned by UsbBus::poll.

Variants

None

No events or packets to report.

Reset

The USB reset condition has been detected.

Data

Fields

ep_out: u16

An OUT packet has been received. This event should continue to be reported until the packet is read.

ep_in_complete: u16

An IN packet has finished transmitting. This event should only be reported once for each completed transfer.

ep_setup: u16

A SETUP packet has been received. This event should continue to be reported until the packet is read. The corresponding bit in ep_out may also be set but is ignored.

USB packets have been received or sent. Each data field is a bit-field where the least significant bit represents endpoint 0 etc., and a set bit signifies the event has occurred for the corresponding endpoint.

Suspend

A USB suspend request has been detected or, in the case of self-powered devices, the device has been disconnected from the USB bus.

Resume

A USB resume request has been detected after being suspended or, in the case of self-powered devices, the device has been connected to the USB bus.

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