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!
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)