IEEE80211_GET_TX_LED(9) Advanced driver interface IEEE80211_GET_TX_LED(9)NAME
ieee80211_get_tx_led_name - get name of TX LED
SYNOPSIS
char * ieee80211_get_tx_led_name(struct ieee80211_hw * hw);
ARGUMENTS
hw
the hardware to get the LED trigger name for
DESCRIPTION
mac80211 creates a transmit LED trigger for each wireless hardware that can be used to drive LEDs if your driver registers a LED device.
This function returns the name (or NULL if not configured for LEDs) of the trigger so you can automatically link the LED device.
RETURN
The name of the LED trigger. NULL if not configured for LEDs.
AUTHOR
Johannes Berg <johannes@sipsolutions.net>
Author.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 IEEE80211_GET_TX_LED(9)
Check Out this Related Man Page
XkbAddDeviceLedInfo(3) XKB FUNCTIONS XkbAddDeviceLedInfo(3)NAME
XkbAddDeviceLedInfo - Initialize an XkbDeviceLedInfoRec structure
SYNOPSIS
XkbDeviceLedInfoPtr XkbAddDeviceLedInfo (XkbDeviceInfoPtr device_info, unsigned int led_class, unsigned int led_id);
ARGUMENTS
- device_info
structure in which to add LED info
- led_class
input extension class for LED device of interest
- led_id
input extension ID for LED device of interest
DESCRIPTION
XkbAddDeviceLedInfo first checks to see whether an entry matching led_class and led_id already exists in the device_info->leds array. If it
finds a matching entry, it returns a pointer to that entry. Otherwise, it checks to be sure there is at least one empty entry in
device_info->leds and extends it if there is not enough room. It then increments device_info->num_leds and fills in the next available
entry in device_info->leds with led_class and led_id.
If successful, XkbAddDeviceLedInfo returns a pointer to the XkbDeviceLedInfoRec structure that was initialized. If unable to allocate suf-
ficient storage, or if device_info points to an invalid XkbDeviceInfoRec structure, or if led_class or led_id are inappropriate, XkbAddDe-
viceLedInfo returns NULL.
To allocate additional space for button actions in an XkbDeviceInfoRec structure, use XkbResizeDeviceButtonActions.
STRUCTURES
Information about X Input Extension devices is transferred between a client program and the Xkb extension in an XkbDeviceInfoRec structure:
typedef struct {
char * name; /* name for device */
Atom type; /* name for class of devices */
unsigned short device_spec; /* device of interest */
Bool has_own_state; /* True=>this device has its own state */
unsigned short supported; /* bits indicating supported capabilities */
unsigned short unsupported; /* bits indicating unsupported capabilities */
unsigned short num_btns; /* number of entries in btn_acts */
XkbAction * btn_acts; /* button actions */
unsigned short sz_leds; /* total number of entries in LEDs vector */
unsigned short num_leds; /* number of valid entries in LEDs vector */
unsigned short dflt_kbd_fb; /* input extension ID of default (core kbd) indicator */
unsigned short dflt_led_fb; /* input extension ID of default indicator feedback */
XkbDeviceLedInfoPtr leds; /* LED descriptions */
} XkbDeviceInfoRec, *XkbDeviceInfoPtr;
typedef struct {
unsigned short led_class; /* class for this LED device*/
unsigned short led_id; /* ID for this LED device */
unsigned int phys_indicators; /* bits for which LEDs physically present */
unsigned int maps_present; /* bits for which LEDs have maps in maps */
unsigned int names_present; /* bits for which LEDs are in names */
unsigned int state; /* 1 bit => corresponding LED is on */
Atom names[XkbNumIndicators]; /* names for LEDs */
XkbIndicatorMapRec maps; /* indicator maps for each LED */
} XkbDeviceLedInfoRec, *XkbDeviceLedInfoPtr;
SEE ALSO XkbResizeDeviceButtonActions(3)X Version 11 libX11 1.6.0 XkbAddDeviceLedInfo(3)