IOCTL_SERIAL_GET_TIMEOUTS IOCTL

Description

The IOCTL_SERIAL_GET_TIMEOUTS request returns the time-out values that the serial controller driver uses with read and write requests.

To set time-outs, a client can use an IOCTL_SERIAL_SET_TIMEOUTS request.

For more information about time-outs, see Setting Read and Write Time-Outs for a Serial Device.

Parameters

Major code

Input buffer

None.

Input buffer length

None.

Output buffer

The AssociatedIrp.SystemBuffer member points to a client-allocated SERIAL_TIMEOUTS structure that the serial controller driver uses to output information about read and write time-out values.

Output buffer length

The Parameters.DeviceIoControl.OutputBufferLength member is set to the size, in bytes, of a SERIAL_TIMEOUTS structure.

Input/output buffer

Input/output buffer length

Status block

If the request is successful, the Information member is set to the size, in bytes, of a SERIAL_TIMEOUTS structure. Otherwise, the Information member is set to zero.

The Status member is set to one of the Generic Status Values for Serial Device Control Requests.

See also

IOCTL_SERIAL_SET_TIMEOUTS

SERIAL_TIMEOUTS