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

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.