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Test Your Knowledge in Computers #282
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Time-sharing operating systems schedule tasks for efficient use of the system and may also include accounting software for cost allocation of processor time, mass storage, printing, and other resources.
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ieee80211_get_assoc_led_name(9) [centos man page]

IEEE80211_GET_ASSOC_(9) 				     Advanced driver interface					   IEEE80211_GET_ASSOC_(9)

ieee80211_get_assoc_led_name - get name of association LED SYNOPSIS
char * ieee80211_get_assoc_led_name(struct ieee80211_hw * hw); ARGUMENTS
hw the hardware to get the LED trigger name for DESCRIPTION
mac80211 creates a association 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 <> Author. COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 IEEE80211_GET_ASSOC_(9)

Check Out this Related Man Page

XkbAllocDeviceInfo(3)						   XKB FUNCTIONS					     XkbAllocDeviceInfo(3)

XkbAllocDeviceInfo - Obtain an XkbDeviceInfoRec structure SYNOPSIS
XkbDeviceInfoPtr XkbAllocDeviceInfo (unsigned int device_spec, unsigned int n_buttons, unsigned int sz_leds); ARGUMENTS
- device_spec device ID with which structure will be used - n_buttons number of button actions to allocate space for - sz_leds number of LED feedbacks to allocate space for DESCRIPTION
XkbAllocDeviceInfo allocates space for an XkbDeviceInfoRec structure and initializes that structure's device_spec field with the device ID specified by device_spec. If n_buttons is nonzero, n_buttons XkbActions are linked into the XkbDeviceInfoRec structure and initialized to zero. If sz_leds is nonzero, sz_leds XkbDeviceLedInfoRec structures are also allocated and linked into the XkbDeviceInfoRec structure. If you request XkbDeviceLedInfoRec structures be allocated using this request, you must initialize them explicitly. To obtain an XkbDeviceLedInfoRec structure, use XkbAllocDeviceLedInfo. 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
XkbAllocDeviceLedInfo(3) X Version 11 libX11 1.5.0 XkbAllocDeviceInfo(3)

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