6.1.2.6. FE_GET_FRONTEND

6.1.2.6.1. Name

FE_GET_FRONTEND

注意

This ioctl is deprecated.

6.1.2.6.2. Synopsis

int ioctl(int fd, FE_GET_FRONTEND, struct dvb_frontend_parameters *p)

6.1.2.6.3. Arguments

fd

File descriptor returned by open().

p

Points to parameters for tuning operation.

6.1.2.6.4. Description

This ioctl call queries the currently effective frontend parameters. For this command, read-only access to the device is sufficient.

6.1.2.6.5. Return Value

On success 0 is returned.

On error -1 is returned, and the errno variable is set appropriately.

EINVAL

Maximum supported symbol rate reached.

Generic error codes are described at the Generic Error Codes chapter.