


linQcable ǥХɥ饤ФѤץκˡ()

						Ǻ May. 23, 2000
						 
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* Index


1.0  ѤǥХե
2.0  ǥХλˡ
     2.1  Ū
     2.2  ǥХμ

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1.0  ѤǥХե

     linQcable ǥХɥ饤ФѤץǤϡʲΥǥХ
     եѤ롣

	/dev/usblinq0
	/dev/usblinq1
	/dev/usblinq2
	/dev/usblinq3

     ϡlinQcable-HOWTO.txt  2.2.4 ǺǥХե
     ꡢΥǥХեѤƥץꥱκԤ


2.0  ǥХλˡ

     2.1  Ū


          1.0 ˤƵ󤲤ǥХեɤ߽񤭥⡼ɤǥץ󤹤뤳Ȥ
	  ǥХѲǽȤʤ롣

	  	int fd;

		fd = open("/dev/usblinq0", O_RDWR);

	  ܥǥХϤԤǥХǤ뤿ᡢO_RDWR (ɤ߽)
	  ⡼ɤˤƥץ󤵤ɬפ롣

	  ǥХեФɤ߹ߤԤȤǥǥХϡ
	  񤭹ߤԤȤǥǥХؤνϤԤ

	  	:	read(fd, buffer, size);
		:	write(fd, buffer, size);

	  ǥХλѤλ顢ǥХե򥯥롣

		close(fd);

	  ʾ夬ϤδܤǤ롣



     2.2  ǥХμ

	  ܥǥХ ioctl ƥॳбƤꡢǥХɤ
	  USB ݡȤ³Ƥ뤫Ȥ뤳ȤǤ롣
	  ʤ ioctl Ѥˤϡ

	      #include <linux/linQcable.h>

	  ȤơܥǥХбإåեɤ߹Ǥɬפ
	  롣

	      struct lnQ_port_info info;

	      ioctl(fd, LNQ_IOCTL_GETPORT, &info);

	  Ȥ뤳ȤǡlnQ_port_info ¤ΤˡǥХ³
	  ֤롣

	  lnQ_port_info ¤Τϡʲι¤ġ

	  
		struct lnQ_port_info {
		    int busnum;   /* USB bus           */
	    	    int level;    /* connection level  */
	    	    int parent;   /* Parent HUB device */
	    	    int port;     /* port              */
	    	    int devnum;   /* device number     */
		};

	  busnum ϡroot hub ³Ƥ USB ХֹǤ롣ɸŪ
	  PC  USB ХĤäƤʤȻפ뤿ᡢ̾ 0x01 
	  ͤȤʤ롣

	  level USB³γإ٥ǡǥХ USB ³ؤΤɤΥ٥
	  ³Ƥ뤫򼨤

	  parent ϡǥХ³Ƥ USB Hub ΥǥХֹǤ롣
	  ΥǥХֹ Linux kernel ǴֹǤꡢ

		$ cat /proc/bus/usb/device

	  ȤȤǥХֹȤʤΤǤ롣

	  port ϡǥХ³Ƥ USB Hub ˤ³ݡȤֹ
	  ǡǽΥݡȤ 0 ֤Ȥơ³ƤݡȤбͤ
	  ֤롣㤨 4 Ĥ³ݡȤ USB Hub Ρ2 ܤΥݡ
	  ˥ǥХ³Ƥ硢port ͤ 1 Ȥʤ롣

ʾ塣
