Windows 7 drivers
Basic Windows 7 drivers.
These don't actually manage any hardware, they are just examples of code running in the kernel mode.
Development
Installation
To install a driver as a Windows service, you can use the sc utility.
For example:
sc create simple type= kernel binPath= C:\workspace\personal\windows7-drivers\km\build\wdk7.1\bin\x64\release\simple.sys
You can then load/unload the driver by starting/stopping the corresponding
service using the net utility.
net start simple
net stop simple
To uninstall a driver, delete the corresponding service using sc.
sc delete simple
Please note that 64-bit versions of Windows 7 (or later) disallow loading 32-bit drivers!
You may also need to explicitly enable self-signed drivers on 64-bit versions
of Windows.
Using the bcdedit utility, execute
bcdedit /set testsigning on
and restart your computer.
Debugging
A driver can be debugged using WinDbg.
To enable kernel debugging, you can use the msconfig utility (navigate to
"Boot" -> "Advanced options..." and check "Debug") or the bcdedit utility:
bcdedit /debug on
bcdedit /dbgsettings serial debugport:1 baudrate:115200
Then restart your computer for the new settings to take effect.
If a driver is loaded on a physical machine, you can connect to the COM port specified in kernel debugging settings (#1 by default) with an actual cable and enter the kernel debugging mode in WinDbg via "File" -> "Kernel Debug...". You might need to restart the debuggee machine a couple of times in order to enter the kernel debugging mode.
If a driver is loaded on a virtual machine, the conventional approach is to expose one of the guest OS's COM ports via a named pipe. You can then connect to the pipe from a WinDbg instance on the host OS (via "File" -> "Kernel Debug..."). Refer to your virtualization software's documentation for details.
Utilities
A couple of usages examples are included along with the drivers. For details, see Utilities.
License
Distributed under the MIT License. See LICENSE.txt for details.