Rabbit RabbitCore RCM4400W Product Manual - page 81

User’s Manual

73

WIFI_COUNTRY_GET

This command returns country-specific information into the user-supplied buffer (or data 

structure) area. Accordingly, you must ensure there is enough space in the buffer for the 

entire data structure. Be sure the data pointer points to a buffer that is large enough to hold 

sizeof(_wifi_country)

.

The 

wifi_status

 structure has the following definition.

typedef struct {

   char id;                   // Country ID

   char country[16];          // Country name

   int first_channel;         // First channel

   int last_channel;          // Last channel

   unsigned int channel_mask; // Channel mask

   int max_pwr_dBm;           // Max power, dBm

   int max_pwr_index;         // Max Power index

_wifi_country;

WIFI_MODE

Sets whether the Wi-Fi device should attach to an infrastructure network (

WIFICONF_

INFRASTRUCT

), which is the most common configuration, or an ad-hoc network 

(

WIFICONF_ADHOC

). Access points are used with infrastructure networks, and coordinates 

communication among all the associated devices. No wireless access points are associated 

with the ad-hoc mode. This allows devices (such as Rabbit-based devices and notebooks) 

to communicate with each other directly as peer devices without an access point.

WIFI_OWNCHAN

This parameter specifies the channel the Wi-Fi device uses in your network when operat-

ing in the ad-hoc mode. Set this parameter to "0" in an infrastructure network to allow the 

Wi-Fi driver to pick the channel automatically for the given SSID. For an ad-hoc network, 

this channel must be set to "1" through "13". Use the 

WIFI_COUNTRY_GET

 command to 

get the valid range of channels for the country where the device will be used.

NOTE: Regional regulations may not allow some channels to be used.

WIFI_WEP_FLAG

The encryption flag can have one of three values—disabled (

WIFICONF_WEP_DISABLE

), 

WEP encryption enabled (

WIFICONF_WEP_ENABLE

), or TKIP/WPA encryption enabled 

(

WIFICONF_WEP_TKIP

). You can use either 40-bit (5-byte) or 104-bit (13-byte) keys for 

WEP (Wired Equivalent Privacy).

WIFI_WEP_USEKEY

Indicates which key ("0"–"3") is the default transmission key. The setting may be left at 

the "0" default. The setting of the WEP keys is described below.