生成過濾裝置
ntstatus
iocreatedevice(
inpdriver_object driverobject,
inulong deviceextensionsize,
in punicode_string devicename optional,
in device_type devicetype,
inulong devicecharacteristics,
inboolean exclusive,
out pdevice_object *deviceobject
);
ntstatus
ioattachdevice(
in pdevice_object sourcedevice,
in punicode_string targetdevice, //this string
is device's name
out pdevie_object *attachdevice
);
unicode_string com_name = rtl_constant_string(l"\\device\\serial0");
ntstatus status = ioattachdevice(
com_filter_device,
&com_device_name,
&attach_device
);
ntstatus
ioattachdevicetodevicestacksafe(
in pdevice_object sourcedevice,
in pdevice_object targetdevice, //this string
isnot device's name
inout pdevie_object *attachdevicetodeviceobject
);
ntstatus
ccpattachdevice(
pdriver_object driver,
pdriver_object oldobj,
pdriver_object *fltobj,
pdriver_object *next)
if(oldobj->characteristics & file_device_sucure_open)
(*fltobj)->characteristics |= file_device_sucure_open;
(*fltobj)->flag |= do_power_pagable;
//將乙個裝置繫結到另乙個裝置上
topdev = ioattachdevicetodevicestack(*fltobj,oldobj);
if(topdev ==
null)
*next = topdev;
//設定這個裝置已經啟動
(*fltobj)->
= (*fltobj)->flags & ~do_device_initializing;
return status_success;
}
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