Windows Driver Kit: Serial Devices
IRP_MJ_DEVICE_CONTROL (Serial)
The IRP_MJ_DEVICE_CONTROL request operates a serial port.
When Sent
A client uses device control requests to do the following:
- Get information about the port
- Get and set registers
- Get and set operating modes
For a description of the device control requests supported by Serial, see Serial Device Control Requests.
Input Parameters
Request specific
Output Parameters
Request specific
I/O Status Block
Request specific
Operation
Request specific
Requirements
Headers: Defined in wdm.h. Include wdm.h or ntddk.h.
See Also
IRP_MJ_INTERNAL_DEVICE_CONTROL (Serial)