2.8. ioctl CEC_ADAP_G_CONNECTOR_INFO¶

2.8.1. Name¶

CEC_ADAP_G_CONNECTOR_INFO - Query HDMI connector information

2.8.2. Synopsis¶

CEC_ADAP_G_CONNECTOR_INFO¶

int ioctl(int fd, CEC_ADAP_G_CONNECTOR_INFO, struct cec_connector_info *argp)

2.8.3. Arguments¶

fd: File descriptor returned by open().

argp

2.8.4. Description¶

Using this ioctl an application can learn which HDMI connector this CEC device corresponds to. While calling this ioctl the application should provide a pointer to a cec_connector_info struct which will be populated by the kernel with the info provided by the adapter’s driver. This ioctl is only available if the CEC_CAP_CONNECTOR_INFO capability is set.

cec_connector_info¶

struct cec_connector_info¶
__u32	`type`	The type of connector this adapter is associated with.
union {	`(anonymous)`
`struct cec_drm_connector_info`	drm	`struct cec_drm_connector_info`
}

Connector types¶
`CEC_CONNECTOR_TYPE_NO_CONNECTOR`	0	No connector is associated with the adapter/the information is not provided by the driver.
`CEC_CONNECTOR_TYPE_DRM`	1	Indicates that a DRM connector is associated with this adapter. Information about the connector can be found in `struct cec_drm_connector_info`.

cec_drm_connector_info¶

struct cec_drm_connector_info¶
__u32	`card_no`	DRM card number: the number from a card’s path, e.g. 0 in case of /dev/card0.
__u32	`connector_id`	DRM connector ID.