2.4.4. ioctl FE_READ_STATUS¶
FE_READ_STATUS - Returns status information about the front-end. This call only requires - read-only access to the device
ioctl(int fd, FE_READ_STATUS, unsigned int *status)¶
All Digital TV frontend devices support the
FE_READ_STATUS ioctl. It is
used to check about the locking status of the frontend after being
tuned. The ioctl takes a pointer to an integer where the status will be
The size of status is actually sizeof(enum fe_status), with varies according with the architecture. This needs to be fixed in the future.
220.127.116.11. int fe_status¶
The fe_status parameter is used to indicate the current state and/or
state changes of the frontend hardware. It is produced using the enum
fe_status values on a bitmask
18.104.22.168. Return Value¶
On success 0 is returned.
On error -1 is returned, and the
errno variable is set
Generic error codes are described at the Generic Error Codes chapter.