6.4.8. ioctls LIRC_GET_MIN_TIMEOUT and LIRC_GET_MAX_TIMEOUT

6.4.8.1. Name

LIRC_GET_MIN_TIMEOUT / LIRC_GET_MAX_TIMEOUT - Obtain the possible timeout range for IR receive.

6.4.8.2. Synopsis

int ioctl(int fd, LIRC_GET_MIN_TIMEOUT, __u32 *timeout)

int ioctl(int fd, LIRC_GET_MAX_TIMEOUT, __u32 *timeout)

6.4.8.3. Arguments

fd

File descriptor returned by open().

timeout

Timeout, in microseconds.

6.4.8.4. Description

Some devices have internal timers that can be used to detect when there's no IR activity for a long time. This can help lircd in detecting that a IR signal is finished and can speed up the decoding process. Returns an integer value with the minimum/maximum timeout that can be set.

注釈

Some devices have a fixed timeout, in that case both ioctls will return the same value even though the timeout cannot be changed via ioctl LIRC_GET_REC_TIMEOUT and LIRC_SET_REC_TIMEOUT.

6.4.8.5. Return Value

On success 0 is returned, on error -1 and the errno variable is set appropriately. The generic error codes are described at the Generic Error Codes chapter.