Pointers

      DPB field dpb_driver_addr points to the associated Physical Device Driver Header.

      SFT field sf_devptr points to the associated Physical Device Driver Header.

    Locations
      Built at the beginning of the first module segment of the device driver.
    VM Owner
      dd1 (0xff50) to dd16 (0xff5f).

    Format 

    旼컴컴컴컴컴컴컴컫컴컴컴쩡컴컴컫컴컴쩡컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴커�Field Name      �Offset�Length�Type�Description                             �
쳐컴컴컴컴컴컴컴컵컴컴컴탠컴컴컵컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴캑
쿞DevNext        �+0    �4     쿏   쿛ointer to next device header           �
쳐컴컴컴컴컴컴컴컵컴컴컴탠컴컴컵컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴캑
쿞DevAtt         �+4    �2     쿥   쿌ttributes of the device                �
쳐컴컴컴컴컴컴컴컵컴컴컴탠컴컴컵컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴캑
쿞DevStrat       �+6    �2     쿥   쿞trategy entry point                    �
쳐컴컴컴컴컴컴컴컵컴컴컴탠컴컴컵컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴캑
쿞DevInt         �+8    �2     쿥   쿔DC entry point                         �
쳐컴컴컴컴컴컴컴컵컴컴컴탠컴컴컵컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴캑
쿞DevName        �+a    �8     쿌   쿻ame (block uses only 1st byte)         �
쳐컴컴컴컴컴컴컴컵컴컴컴탠컴컴컵컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴캑
쿞DevProtCS      �+12   �2     쿥   쿛rotect-mode CS of strategy entry pt    �
쳐컴컴컴컴컴컴컴컵컴컴컴탠컴컴컵컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴캑
쿞DevProtDS      �+14   �2     쿥   쿛rotect-mode DS                         �
쳐컴컴컴컴컴컴컴컵컴컴컴탠컴컴컵컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴캑
쿞DevRealCS      �+16   �2     쿥   쿝eal-mode CS of strategy entry pt       �
쳐컴컴컴컴컴컴컴컵컴컴컴탠컴컴컵컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴캑
쿞DevRealDS      �+18   �2     쿥   쿝eal-mode DS                            �
쳐컴컴컴컴컴컴컴컵컴컴컴탠컴컴컵컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴캑
쿞DevCaps        �+20   �4     쿏   쿫it map of DD /MM restrictions          �
읕컴컴컴컴컴컴컴컨컴컴컴좔컴컴컨컴컴좔컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴켸

    SDevCaps flag definitions 

    旼컴컴컴컴컴컴컴컫컴컴컴컴쩡컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴�
쿙ame            쿍it Mask쿏escription                        �
쳐컴컴컴컴컴컴컴컵컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴�
쿏EV_IOCTL2      �0x0001  쿏D can handle dev ioctl2           �
쳐컴컴컴컴컴컴컴컵컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴�
쿏EV_16MB        �0x0002  쿏D can handle phys.addresses >16MB �
쳐컴컴컴컴컴컴컴컵컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴�
쿏EV_PARALLEL    �0x0004  쿏D handles parallel port           �
쳐컴컴컴컴컴컴컴컵컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴�
쿏EV_ADAPTER_DD  �0x0008  쿏D supports Adapter Dev Driver Intf�
쳐컴컴컴컴컴컴컴컵컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴�
쿏EV_INITCOMPLETE�0x0010  쿏D can handle CMDInitComplete      �
읕컴컴컴컴컴컴컴컨컴컴컴컴좔컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴�

    Device Driver Type defininitions 

    旼컴컴컴컴컴컫컴컴컴컴쩡컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴커
쿙ame        쿍it Mask쿏escription                             �
쳐컴컴컴컴컴컵컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴캑
쿏EV_CIN     �0x0001  �0 2 5 Device is console in              �
쳐컴컴컴컴컴컵컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴캑
쿏EV_COUT    �0x0002  �1 2 5 Device is console out             �
쳐컴컴컴컴컴컵컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴캑
쿏EV_NULL    �0x0004  �2 2 5 Device is the Null device         �
쳐컴컴컴컴컴컵컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴캑
쿏EV_CLOCK   �0x0008  �3 2 5 Device is the clock device        �
쳐컴컴컴컴컴컵컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴캑
쿏EV_SPEC    �0x0010  �4 2 Devices can support INT 29h         �
쳐컴컴컴컴컴컵컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴캑
쿏EV_ADD_ON  �0x0020  �5 Device is add-on driver (BWS)         �
쳐컴컴컴컴컴컵컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴캑
쿏EV_GIOCTL  �0x0040  �6 3 Device supports generic ioctl       �
쳐컴컴컴컴컴컵컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴캑
쿏EV_FCNLEV  �0x0380  �9-7 5 Device function level             �
쳐컴컴컴컴컴컵컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴캑
쿏EV_30      �0x0800  �11 2 5 Accepts Open/Close/Removable     �
�            �        쿘edia                                   �
쳐컴컴컴컴컴컵컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴캑
쿏EV_SHARE   �0x1000  �12 Device wants FS sharing checking     �
쳐컴컴컴컴컴컵컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴캑
쿏EV_NON_IBM �0x2000  �13 2 5 Device is a non IBM device.      �
쳐컴컴컴컴컴컵컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴캑
쿏EV_IOCTL   �0x4000  �14 2 Device accepts IOCTL request       �
쳐컴컴컴컴컴컵컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴캑
쿏EV_CHAR_DEV�0x8000  �15 2 5 Device is a character device     �
읕컴컴컴컴컴컨컴컴컴컴좔컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴켸

    Level definitions for devices 

    旼컴컴컴컫컴컴컴컴쩡컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴커
쿙ame    쿍it Mask쿏escription                             �
쳐컴컴컴컵컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴캑
쿏EVLEV_0�0x0000  쿏OS 3.0 and before                      �
쳐컴컴컴컵컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴캑
쿏EVLEV_1�0x0080  쿏OS 5.0                                 �
쳐컴컴컴컵컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴캑
쿏EVLEV_2�0x0100  쿚S/2 v1.2 (new gen ioctl iface)         �
쳐컴컴컴컵컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴캑
쿏EVLEV_3�0x0180  쿚S/2 v2.0 (support of memory above 16MB)�
읕컴컴컴컨컴컴컴컴좔컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴켸

    [Back] [Next]