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joy —

???祤???ƥ??å??ΥǥХ????ɥ饤??

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device joy0 at isa? port IO_GAME #include <machine/joystick.h>

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???祤???ƥ??å??ǥХ????ɥ饤?Фϡ????ץꥱ?????????? PC ???祤???ƥ??å? ?ξ??֤??ɤ߽Ф????褦?ˤ??ޤ???

?????????Ǥ??ΥǥХ????򥪡??ץ??Ǥ????ץ??????? 1 ?Ĥ????Ǥ???

???祤???ƥ??å??ξ??֤ϡ?read() ?????ƥॳ?????ˤ??äơ? joystick ??¤?Τ??????????ޤ??? ???ι?¤?Τϥإå??ե??????Ǽ??Τ褦???????????Ƥ??ޤ???

	struct joystick {
		int x;         /* x ???? */
		int y;         /* y ???? */
		int b1;	       /* ?ܥ??? 1 ?ξ??? */
		int b2;	       /* ?ܥ??? 2 ?ξ??? */
	};

???֤ϰ??̤? 0-2000 ???ͤ??Ȥ??ޤ???

perl ?? 1 ?Լ¹???:

perl -e 'open(JOY,"/dev/joy0")||die;while(1)
{sysread(JOY,$x,16);@j=unpack("iiii",$x);print "@j\n";sleep(1);}'

ioctl ?ƤӽФ?

?????Ĥ??? ioctl() ?ƤӽФ??????ѤǤ??ޤ??? ???????? int * ???ΰ????? 1 ?ļ????ޤ???

JOY_SETTIMEOUT int *limit: ???祤???ƥ??å??ξ??֤??ɤ߽Ф??ݤλ??????? (?ޥ???????ñ??) ?????ꤷ?ޤ??? ???ޤ꾮?????ͤ????ꤹ?????????????֤??ͤ????뤳?Ȥ??Ǥ??ʤ??ʤ??ޤ? (???ξ????? -2147483648 ?ˤʤ??ޤ?) ???? ?????Ǥ??ܥ????ξ??֤????????ܤ??Ƥ????????ˤ?????Ω?Ĥ??⤷???ޤ?????
JOY_GETTIMEOUT int *limit: ???祤???ƥ??å??ξ??֤??ɤ߽Ф??ݤλ??????? (?ޥ???????ñ??) ?????ޤ???
JOY_SET_X_OFFSET int *offset: ???祤???ƥ??å??ξ??֤??ɤ߽Ф??ݤ? X ???֤˲û??????ͤ????ꤷ?ޤ???
JOY_SET_Y_OFFSET int *offset: ???祤???ƥ??å??ξ??֤??ɤ߽Ф??ݤ? Y ???֤˲û??????ͤ????ꤷ?ޤ???
JOY_GET_X_OFFSET int *offset: ???祤???ƥ??å??ξ??֤??ɤ߽Ф??ݤ? X ???֤˲û??????ͤ????ޤ???
JOY_GET_Y_OFFSET int *offset: ???祤???ƥ??å??ξ??֤??ɤ߽Ф??ݤ? Y ???֤˲û??????ͤ????ޤ???

????Ū????

DB-15 ???ͥ????Υԥ????֤ϼ????̤??Ǥ?:

1 XY1 (+5v)
2 ?????å? 1
3 X1 (ʬ???? #1)
4 ?????å? 1 (GND)
5 ?????å? 2 (GND)
6 Y1 (ʬ???? #2)
7 ?????å? 2
8 N.C.
9 XY2 (+5v)
10 ?????å? 4
11 X2 (ʬ???? #3)
12 ?????å? 3&4 (GND)
13 Y2 (ʬ???? #4)
14 ?????å? 3
15 N.C.

ʬ???????̾? 0-150k (?ޤ??? 0-100k) ?β????񹳤ǡ? IBM ?ε???ʸ???ˤ????С????֤ϼ??μ???ɽ?????ޤ?: Time = 24.2e-6s + 0.011e-6s * R/Ohms

??Ϣ?ե?????

/dev/joy?: ???祤???ƥ??å??ΥǥХ????ե?????

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Jean-Marc Zucconi ⟨jmz@cabri.obs-besancon.fr⟩

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joystick ?ɥ饤?Ф? FreeBSD 2.0.5 ?˽??????о줷?ޤ?????