5.3.10. ioctl LIRC_GET_LENGTH Name

LIRC_GET_LENGTH - Retrieves the code length in bits. Synopsis

int ioctl(int fd, LIRC_GET_LENGTH, __u32 *length) Arguments

File descriptor returned by open().
length, in bits Description

Retrieves the code length in bits (only for LIRC-MODE-LIRCCODE). Reads on the device must be done in blocks matching the bit count. The bit could should be rounded up so that it matches full bytes. 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.