Linux Touch Screen HOWTO

  Christoph Baumann, cgb@debian.org
  Oct 24, 2000
  ÀÌÈ£¿¬guru2k@kldp.org <mailto:guru2k@kldp.org>

  ÀÌ ¹®¼­´Â XFree86¿¡¼­ ÅÍÄ¡ ½ºÅ©¸° ÀÔ·Â ÀåÄ¡¸¦ ¾î¶»°Ô ¼³Á¤ÇÏ´ÂÁö ±â¼úÇÑ
  ´Ù. ÀúÀÚ´Â ¿ÀÁ÷ EloTouch(R) ¿Í MicroTouch(R) ÀåÄ¡¸¸ »ç¿ëÇÒ ±âȸ°¡
  À־ ÀÌ ÇÏ¿ìÅõ´Â ¿ÀÈ÷·Á ÀÏÁ¤ÇÑ ÀÌ ÀåÄ¡µéÀ» À§ÇÑ °ÍÀÌ´Ù.
  ______________________________________________________________________

  ¸ñÂ÷

  1. ¾î´À Á¾·ùÀÇ ÀåÄ¡µéÀÌ ¿©±â¿¡ ±â¼úÇÏ°Ô µÇ´À³Ä?
  2. ±× ÀåÄ¡¸¦ ¼³Á¤ÇÏ´Â ¹æ¹ý
  3. ÀåÄ¡ ÀÛµ¿½ÃÅ°±â
  4. ÅÍÄ¡ ½ºÅ©¸°°ú Æз¯·² ¸¶¿ì½º »ç¿ëÇϱâ
  5. ÀÐÀ»°Å¸® Á¦¾È

  ______________________________________________________________________

  1.  ¾î´À Á¾·ùÀÇ ÀåÄ¡µéÀÌ ¿©±â¿¡ ±â¼úÇÏ°Ô µÇ´À³Ä?

  ÀÌ ÇÏ¿ìÅõ´Â ½Ã¸®¾ó Æ÷Æ®(/dev/ttyS0 ȤÀº /dev/ttyS1)¸¦ ÅëÇØ ¿¬°áµÈ ÀåÄ¡
  µé¿¡ Àü³äÇÑ´Ù.

  2.  ±× ÀåÄ¡¸¦ ¼³Á¤ÇÏ´Â ¹æ¹ý

  ÅÍÄ¡ ½ºÅ©¸° ÀåÄ¡´Â XF86Config ÆÄÀÏ (´ëºÎºÐ /etc/X11/XF86Config ȤÀº
  /etc/XF86Config) ÀÇ Xinput ºÎºÐ¿¡ ¼³Á¤µÇ¾ú´Ù. ¸ÇóÀ½¿¡ ÀåÄ¡ µå¶óÀ̹ö
  ¸ðµâÀÌ Á¸ÀçÇÏ´ÂÁö¸¦ È®ÀÎÇ϶ó. ±×°ÍµéÀº /usr/X11R6/lib/modules/¿¡ ÀÖ´Ù
  (¹«¾ùº¸´Ùµµ xf86Elo.so ¿Í xf86MuTouch.so ÀåÄ¡¿¡ ´ëÇØ ¾ð±ÞÇÑ ¸ðµâ).
  Áö±Ý XF86Config¸¦ º¸¶ó. °Å±â´Â ÀÌ°Í°ú °°ÀÌ º¸ÀÌ´Â ºÎºÐÀÌ ÀÖ¾î¾ß ÇÑ´Ù:

  Section "Files"
  ...
  ModulePath "/usr/X11R6/lib/modules"
  ...
  EndSection

  X ¼­¹ö¿¡ ÀÇÇØ ÀûÀçµÇ´Â ¸ðµâÀ» ¾òÀ¸·Á¸é ÀÌ °Í°ú °°Àº ºÎºÐÀÌ °Å±â¿¡ ÀÖ¾î
  ¾ß ÇÑ´Ù:

  Section "Module"
  Load "xf86Elo.so"
  EndSection

  Áö±Ý ´õ º¹ÀâÇÑ ºÎºÐÀÌ ÀÖ´Ù. X´Â ÀåÄ¡¿¡ °üÇÑ ¸î¸î ¸Å°³ º¯¼ö¸¦ ÇÊ¿ä·Î ÇÑ
  ´Ù. ÀÌ °Í°ú °°ÀÌ º¸ÀÌ´Â ÀÌ°ÍÀ» À§ÇÑ ºÎºÐ ("man XF86Config"ÀÇ ´õ¸¹Àº
  Ç׸ñ À» º¸¶ó):

  Section "Xinput"
   SubSection "Elographics"
  #the entry for a MicroTouch device would be SubSection "MicrotouchFinger"
    Port "/dev/ttyS1" # for a device at serial port 2
    DeviceName "TouchScreen" #could be any unambiguous name
    MinimumXPosition 300
    MaximumXPosition 3700
    MinimumYPosition 300
    MaximumYPosition 3700
    UntouchDelay 10 #not supported with MuTouch
    ReportDelay 10  #not supported with MuTouch
    AlwaysCore #activates the device on startup
   EndSubSection
  EndSection

  ±× Çϵå¿þ¾îÀÇ ¼³Á¤À» À§ÇÑ µ¶Æ¯ÇÑ °úÁ¤ÀÎ MinimumXPosition, ±âŸ ÀÔ·ÂÀ»
  Ç϶ó (ÅÍÄ¡ ½ºÅ©¸°°ú °ü°è°¡ ÀÖ´Â ¸ð´ÏÅÍÀÇ Àå¼Ò¿¡ ´Þ·ÁÀÖ´Ù). ±× °ªÀº
  ´ç½Å ÀÇ ¸ð´ÏÅÍ (xmax¿Í ymax´Â X¼­¹öÀÇ ¼±ÅÃµÈ Çػ󵵿¡ ´Þ·ÁÀÖ´Ù,
  1024x768 °°Àº) ÀÇ Á¡ (0,0) ¿Í (xmax,yman) ÀÌ ´ç½ÅÀÇ ÅÍÄ¡ ½ºÅ©¸°¿¡
  ±â·ÏÇÏ´Â °ÍÀ» °áÁ¤ÇÑ ´Ù. ±× ÀåÄ¡ µå¶óÀ̹ö´Â ÀÌ °ªµéÀ» ÀÐ°í ´Ù¸¥ ÁÂÇ¥¸¦
  ½á ³Ö´Â´Ù. ¼³¸í:

   --------------touch screen area-----------------
   I                                              I
   I  ########visible monitor area##############  I
   I  #x                                       #  I
   I  # (0,0)                                  #  I
   I  # (MinimumXPosition,MinimumYPosition)    #  I
   I  #                                        #  I
   I  #                                        #  I
   I  #                                        #  I
   I  #                                        #  I
   I  #                                        #  I
   I  #                                        #  I
   I  #                                        #  I
   I  #     (MaximumXPosition,MaximumYPosition)#  I
   I  #                             (xmax,ymax)#  I
   I  #                                       x#  I
   I  ##########################################  I
   I                                              I
   ------------------------------------------------

  ÀÌ ±â·ÏÇϱâ´Â ½ÃÇè°ú ¿¡·¯ ȤÀº ÀåÄ¡ÀÇ ¹Ì¼÷ÇÑ Ãâ·Â Àб⿡ ÀÇÇØ ³¡³¯¼ö
  ÀÖ´Ù (¸î¸î ½Ã¸®¾ó Æ÷Æ® ÇÁ·Î±×·¡¹ÖÀÌ ÇÊ¿äÇÏ´Ù, "The Linux Serial
  Programming HOWTO" ¸¦ º¸¶ó). Eletouch¿Í MicroTouch ±Ùº»ÀÇ °ËÁ¤ µµ±¸°¡
  Á¸Àç ÇÑ´Ù (ÀÌ ¹®¼­ÀÇ ÀúÀÚ¿¡ ÀÇÇØ ¾²¿©Á³°í,
  ftp://metalab.unc.edu/pub/linux/X11/xutils/touchcal-0.1.tar.gz
  <ftp://metalab.unc.edu/pub/linux/X11/xutils/touchcal-0.1.tar.gz>) ¿¡¼­
  ãÀ» ¼ö ÀÖ´Ù).

  3.  ÀåÄ¡ ÀÛµ¿½ÃÅ°±â

  X¸¦ ½ÃÀÛÇÑ ÈÄ¿¡, ¿¢½ºÅ͹̳ο¡¼­ ±× ¸í·É¾î¸¦ ÃĶó

  xsetpointer <devicename>

  <devicename> ¿¡´Â XF86ConfigÀÇ DeviceName "....." ÀÇ ÁÙ¿¡ Á¤ÀÇÇÑ
  À̸§À» ½á¶ó, ¿¹¸¦ µé¸é TouchScreenÀÏ °ÍÀÌ´Ù.

  ÀåÄ¡¸¦ ½ÃÀÛÇÒ¶§¸¶´Ù ÀÛµ¿ ½ÃÅ°·Á¸é ÅÍÄ¡ ½ºÅ©¸°ÀÇ AlwaysCore¸¦ ¼±ÅÃÇضó.

  4.  ÅÍÄ¡ ½ºÅ©¸°°ú Æз¯·² ¸¶¿ì½º »ç¿ëÇϱâ

  ÅÍÄ¡ ½ºÅ©¸°°ú Æз¯·· ¸¶¿ì½º¸¦ »ç¿ëÇÏ·Á¸é Xinput-sectionÀÇ mouse
  specs¸¦ µî·Ï ½ÃÄÑ¾ß ÇÑ´Ù. ÀÌ Á¤ÀÇ´Â Pointer-section ¿¡µµ °°ÀÌ ÀÖ¾î¾ß
  ÇÑ´Ù. ¾Æ·¡¿¡ PS/2-mouseÀÇ ¿¹°¡ ÀÖ´Ù:

  Section "Xinput"
     SubSection "Mouse"
        Protocol "PS/2"
        Port "/dev/mouse" #could also be /dev/psaux
        DeviceName "Mouse"
        AlwaysCore
     EndSubSection
  ...
  EndSection

  ¸î¸î »ç¶÷µéÀº ÀÌ °ÍÀ» ÁÖ¸ñÇÏ°Ô ÇÑ´Ù. ƯÈ÷ AlwaysCore ¿É¼ÇÀÇ °ü½À.  ±×
  µé ¸ðµÎ¿¡°Ô °¨»çÇÑ´Ù.

  5.  ÀÐÀ»°Å¸® Á¦¾È

  o  XF86ConfigÀÇ ¸ÇÆäÀÌÁö

  o  http://www.elotouch.com/Support/linux.asp
     <http://www.elotouch.com/Support/linux.asp>

  o  http://www.hof-berlin.de/tablet/tablet.html <http://www.hof-
     berlin.de/tablet/tablet.html> (ÀÌ URLÀ» ¾Ë·ÁÁØ Christer Olofsso
     ¿¡°Ô °¨»çÇÑ´Ù.)

  o  ´ç½ÅÀÇ ÅÍÄ¡ ½ºÅ©¸°°ú ÇÔ²² ¹ÞÀº ¸Þ´º¾ó :-)