---
name: "gii_cmd_event"
section: "3"
platform: "linux"
package: "libgii1"
version: "1:1.0.2-4.1"
release: "Debian 7 (Wheezy)"
platforms: ["linux"]
url: "https://new.carta.tech/gii_cmd_event"
---

# gii\_cmd\_event(3)

LibGII commands and information events

## 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)`