1. NAME▲

struct_input_polled_dev - simple polled input device

2. SYNOPSIS ▲



 
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struct input_polled_dev {
  void * private;
  void (* open) (struct input_polled_dev *dev);
  void (* close) (struct input_polled_dev *dev);
  void (* poll) (struct input_polled_dev *dev);
  unsigned int poll_interval;
  unsigned int poll_interval_max;
  unsigned int poll_interval_min;
  struct input_dev * input;
};

3. MEMBERS ▲

private
    private driver data.

open
    driver-supplied method that prepares device for polling (enabled the device and maybe flushes device state).

close
    driver-supplied method that is called when device is no longer being polled. Used to put device into low power mode.

poll
    driver-supplied method that polls the device and posts input events (mandatory).

poll_interval
    specifies how often the poll method should be called. Defaults to 500 msec unless overridden when registering the device.

poll_interval_max
    specifies upper bound for the poll interval. Defaults to the initial value of poll_interval.

poll_interval_min
    specifies lower bound for the poll interval. Defaults to 0.

input
    input device structure associated with the polled device. Must be properly initialized by the driver (id, name, phys, bits).

4. DESCRIPTION ▲

Polled input device provides a skeleton for supporting simple input devices that do not raise interrupts but have to be periodically scanned or polled to detect changes in their state.

5. COPYRIGHT ▲