IOCTL_SERIAL_SET_BREAK_ON IOCTL (ntddser.h)
The IOCTL_SERIAL_SET_BREAK_ON request sets the line control break signal active.
To set the line control break signal inactive, a client can use an IOCTL_SERIAL_SET_BREAK_OFF request.
Major code
Input buffer
None.
Input buffer length
None.
Output buffer
None.
Output buffer length
None.
Status block
The Information member is set to zero.
The Status member is set to one of the Generic Status Values for Serial Device Control Requests.
Requirements
| Requirement | Value |
|---|---|
| Header | ntddser.h (include Ntddser.h) |