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µð¹ÙÀ̽º µå¶óÀ̹ö´Â ·Îµå °¡´ÉÇÑ(loadable) Ä¿³Î ¸ðµâµé·Î¼­ I/O¸¦
´ã´çÇÏ´Â O/SÀÇ ¸ðµâ(Áï, I/O Manager)°ú ÁÖº¯ Çϵå¿þ¾î(H/W) »çÀÌ¿¡ ÀÎÅÍÆäÀ̽º¸¦ Ã¥ÀÓÁø´Ù.

 
QnA
O/S ¶Ç´Â CPU°¡ Á¦°øÇÏ´Â º¸È£ ¸ðµå ±ÔÁ¤¿¡ ¸Â°Ô Resource¸¦ Access¸¦ ÇؾßÇÑ´Ù.
User ApplicationÀº IO port¸¦ Á÷Á¢ Access ÇÒ ¼ö ¾øÀ¸¸ç, Memory ¿µ¿ªµµ Á¦ÇÑ ÀûÀ¸·Î 2G(0x7FFFFFF) ÀÌÇÏÀÇ ¿µ¿ª¸¸À» »ç¿ëÇØ¾ß ÇÑ´Ù.
 
int val = _inp(0x61);
val |= 3;
_outp(0x61, val); // º¸È£¸ðµå ±ÔÁ¤ À§¹Ý

char *p;
p = (char *) 0x90000000;
*p = ¡®a¡¯; // º¸È£¸ðµå ±ÔÁ¤ À§¹Ý

 
 
µð¹ÙÀ̽º µå¶óÀ̹ö´Â O/S Á¾¼ÓÀûÀ̹ǷΠ¸ÕÀú O/SÀÇ Á¾·ù¸¦ º¸¸é Å©°Ô Windows 2000 °è¿­°ú Consumer Windows
°è¿­
·Î ³ª´©¾î º¼ ¼ö ÀÖ°í Windows 2000 °è¿­¿¡´Â ÇöÀç Windows 2000°ú Windows XP, Windows 2003¸¦ Æ÷ÇÔ
ÇÒ ¼ö ÀÖ´Ù. ±×¸®°í Consumer Windows °è¿­¿¡´Â Windows 95, Windows 98, Millennium Edition À» Æ÷ÇÔ ½Ãų
¼ö ÀÖ´Ù.

ÀÌ·¯ÇÑ O/SÀÇ ºÐ·ù¿¡ µû¶ó À̵é O/S¸¦ ±â¹ÝÀ¸·Î ½ÇÇàµÇ´Â µå¶óÀ̹ö¸¦ Å©°Ô µÎ ŸÀÔ VxD ¿Í WDM·Î º¼ ¼ö ÀÖ´Ù.
Consumer Windows °è¿­¿¡¼­´Â ÁÖ·Î VxD ŸÀÔÀÇ µå¶óÀ̹ö¸¦ »ç¿ëÇÏ°í Windows 2000 °è¿­¿¡¼­´Â WMD ŸÀÔÀÇ
µå¶óÀ̹ö¸¦ »ç¿ëÇÑ´Ù.

±×¸®°í Âü°í·Î Consumer Windows °è¿­Áß¿¡¼­ Windows 98°ú Millenninum EditionÀº WDM ŸÀÔÀÇ µå¶óÀ̹öµµ
Áö¿øÇÑ´Ù. ¶ÇÇÑ Windows NT 4.0ÀÎ °æ¿ì´Â VxD¿Í WDM°ú ¶Ç ´Ù¸¥ Çü½ÄÀÎ Kernel Driver ŸÀÔÀ» »ç¿ëÇÑ´Ù. »ç½Ç
Kernel Driver ŸÀÔÀ» ±â¹ÝÀ¸·Î ÇÏ¿© PnP(Plug and Play), Power Management, WMI(Windows Management Intrumentation)¿Í°°Àº ±â´ÉµéÀÌ Ãß°¡ÀûÀ¸·Î ´õ Áö¿øµÇ´Â Çü½ÄÀÌ WDM ŸÀÔÀÌ´Ù.

 
V : Virtual
x : Device
D : Driver
ÀÇ ¾àÀÚ·Î, °¡»óÀåÄ¡°ü¸®ÀÚ¶ó°í Çؼ®ÇÒ ¼ö ÀÖÀ¸¸ç À̶§, x´Â DeviceÀÇ ÇÑ Á¾·ù·Î¼­ KeyBoard ¶Ç´Â
     Mouse°°Àº ¿©·¯ ÁÖº¯ ÀåÄ¡°¡ µÉ ¼ö ÀÖ´Ù. ±×¸®°í ÀÌ Å¸ÀÔÀÇ µå¶óÀ̹öµéÀº ¾Õ¿¡¼­µµ ¾ð±ÞÇÏ¿´Áö¸¸ ÁÖ·Î
     Consumer Windows°è¿­ (Windows 95, Windows 98, Windows Millennium Edition)¿¡¼­ »ç¿ëÇÏ´Â µå¶ó
     À̹ö TypeÀ»ÀÏÄ´´Ù.
Windows Driver Model ÀÇ ¾àÀÚ·Î, ¸¶ÀÌÅ©·Î¼ÒÇÁÆ®¿¡¼­ Driver °³¹ßÀ» Ç¥ÁØÈ­½ÃÅ°°í ȣȯ¼ºÀ» °¡Áö°Ô Çϱâ
À§ÇØ ¸¸µç µå¶óÀ̹ö ¸ðµ¨ÀÌ´Ù. WDM ŸÀÔÀÇ µå¶óÀ̹ö¸¦ Á¦ÀÛÇϸé WDM µå¶óÀ̹ö ¸ðµ¨À» Áö¿øÇÏ´Â Wind-
ows 98, Windows Millennium Edition, Windows 2000, Windows XP, Windows 2003 ¿¡¼­ ¼Ò½ºÄÚµå ·¹º§
¿¡¼­ ȣȯÀÌ µÇ¹Ç·Î ´Ù¸¥ O/S·ÎÀÇ Æ÷ÆÃÀÛ¾÷Àº Æ÷ÆÃÇÏ°íÀÚÇÏ´Â O/SÀÇ °³¹ß ȯ°æ¿¡¼­ Àç ÄÄÆÄÀÏÇϴ°͸¸·Îµµ
ÀÌ·ç¾î Áú ¼ö ÀÖ´Ù.
Windows Driver FoundationÀÇ ¾àÀÚ·Î, WDMÀÇ ´ÜÁ¡À» º¸¿ÏÇÑ »õ·Î¿î µå¶óÀ̹ö °³¹ß ¸ðµ¨ÀÌ´Ù.
Windows 2000, Windows XP, Windows 2003À» Æ÷ÇÔÇÏ¿© ÇâÈÄ Ãâ½ÃµÉ codename Longhorn¿¡¼­µµ
äÅÃµÉ °ÍÀ¸·Î º¸ÀδÙ.
WDMÀÇ µå¶óÀ̹öµéÀº ±× ¿ªÇÒ¿¡ µû¶ó Å©°Ô 3Á¾·ùÀÇ µå¶óÀ̹öµé·Î ºÐ·ùÇÒ ¼ö ÀÖ´Ù.

ù°, Bus µå¶óÀ̹ö·Î¼­ PCI, PCMCIA, USBµî°ú °°Àº Physical bus ¶Ç´Â ³í¸®Àû bus¿¡
        Á¸ÀçÇÏ´Â ÀåÄ¡(devices)ÀÇ Á¸À縦 °¨ÁöÇÏ°í, PnP Manager¿¡°Ô ÀåÄ¡ÀÇ Á¸À縦
        ¾Ë·ÁÁÖ¸ç, ÇØ´ç BusÀÇ Power °ü¸®¸¦ Ã¥ÀÓÁö´Â ¿ªÇÒÀ» ¼öÇàÇÑ´Ù.

µÑ°, Function µå¶óÀ̹ö·Î¼­ ÇØ´ç ÀåÄ¡¿¡ ´ëÇÑ I/O ¿äûÀ» ¼öÇàÇÏ°í, PnP,Power °ü¸®µµ
        Ã¥ÀÓÀ» Áø´Ù.

¼Â°, Filter µå¶óÀ̹ö·Î¼­ ÀϹÝÀûÀ¸·Î Function µå¶óÀ̹öÀÇ À§(Upper Filter)¶Ç´Â
        ¾Æ·¡(Lower Filter) °èÃþ¿¡ À§Ä¡ÇÏ¿© H/W ¶Ç´Â Functionµå¶óÀ̹öÀÇ ±â´É º¸¿Ï
        ¿ªÇÒÀ» ¼öÇàÇÑ´Ù.

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