ref: 47a7dba17c1d56bbd1902a18a9d9797a332ded4f
dir: /sys/src/9/port/led.h/
typedef struct Ledport Ledport; struct Ledport { uchar nled; uchar led; ushort ledbits; /* implementation dependent */ }; /* http://en.wikipedia.org/wiki/IBPI */ enum { Ibpinone, Ibpinormal, Ibpilocate, Ibpifail, Ibpirebuild, Ibpipfa, Ibpispare, Ibpicritarray, Ibpifailarray, Ibpilast, }; char *ledname(int); int name2led(char*); long ledr(Ledport*, Chan*, void*, long, vlong); long ledw(Ledport*, Chan*, void*, long, vlong);