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+libparportled - 0.1.1
+-------------------
+This library is intended to control a LED device plugged on parallel port.
+A such device is composed of a number of LED (default is 8, maybe more is
+possible, I don't know) plugged on parallel port.
+
+Author
+------
+Julien Danjou <julien@jdanjou.org>
+http://jdanjou.org/libparportled/
+
+Usage
+-----
+gcc option: -lparportled
+#include <parportled.h>
+
+MAXLED is defined as the number of LED available.
+(--with-maxled= in configure option)
+
+BASEPORT is the IO address of parallel port
+(--with-port= in configure option)
+
+Functions available are:
+
+int led_setperm();
+Initialise the parallel port, MUST be root !
+Return -1 on error.
+
+void led_on_all();
+Turn all LED on.
+
+void led_off_all();
+Turn all LED off.
+
+int led_on(int led);
+Turn LED number "led" on.
+
+int led_off(int led);
+Turn LED number "led" off.
+
+int led_set_on(int *state);
+State must be a int vector. If value is > 0, LED will be turned on.
+
+int led_set_off(int *state);
+Do the inverse of led_set().
+
+int led_blink_on(int led, int us_time);
+Start blinking LED number "led". us_time is the time in microsecond of
+the state changement.
+This function starts a new thread.
+Please note that all LED are blinking with in a same interval, the first
+us_time is used.
+If you do:
+led_blink_on(1, 10000);
+led_blink_on(2, 2000);
+10000 will be used for ALL blinking LED.
+
+int led_blink_off(int led);
+Stop blinking LED number led.
+If no more led are blinking, thread exits.