NAME¶

gii_cmd_event, gii_cmd_nodata_event - LibGII commands and information events

SYNOPSIS¶

#include <ggi/events.h>

typedef struct {

    COMMON_DATA;

    uint32_t  code;

} gii_cmd_nodata_event;

#define GII_CMD_DATA_MAX  (248-sizeof(gii_cmd_nodata_event))

typedef struct gii_cmd_event {

    COMMON_DATA;

    uint32_t  code;
    uint8_t   data[GII_CMD_DATA_MAX];

} gii_cmd_event;

DESCRIPTION¶

These are used internally either to the application or the kernel. The same event is used for both Command and Information events.

GENERATED EVENTS¶

gii_cmd_event is the basic structure for evCommand and evInformation events. It may need to be casted to some other structure (depending on code) to access the data.

STRUCTURE MEMBERS¶

code

The command or request code.

 

data

Provides raw access to the device and/or command specific data. The recipient must not store references to the data. If the data information is needed afterwards, copy it!

 

DEVICE INFORMATION¶

One use of evCommand is to convey some capabilities of a GII device, via the GII_CMDCODE_GETDEVINFO command code.

SEE ALSO¶

gii_event(3), gii_cmddata_getdevinfo(3)