2.6.2.5. FE_SET_FRONTEND

2.6.2.5.1. Name

FE_SET_FRONTEND

2.6.2.5.2. Synopsis

int ioctl(int fd, int request = FE_SET_FRONTEND, struct dvb_frontend_parameters *p)

2.6.2.5.3. Arguments

int fd	File descriptor returned by a previous call to open().
int request	Equals FE_SET_FRONTEND for this command.
struct dvb_frontend_parameters *p	Points to parameters for tuning operation.

2.6.2.5.4. Description

This ioctl call starts a tuning operation using specified parameters. The result of this call will be successful if the parameters were valid and the tuning could be initiated. The result of the tuning operation in itself, however, will arrive asynchronously as an event (see documentation for FE_GET_EVENT and FrontendEvent.) If a new FE_SET_FRONTEND operation is initiated before the previous one was completed, the previous operation will be aborted in favor of the new one. This command requires read/write access to the device.

2.6.2.5.5. 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.

EINVAL

Maximum supported symbol rate reached.