Quatech DSP-100 - Manual (Page 45)

8.1 Command Line Options
The DSP-100 Client Driver for OS/2 supports two methods of configuration: using
"system assigned" resources and using "user assigned" resources. Both options
provide full PCMCIA compliance and functionality (including "Hot-swapping") but
each has some advantages and disadvantages as discussed in the following sections.
8.1.1 Configuring With "System Assigned" Resources
Allowing the OS/2 Plug-and-Play system to assign the hardware resources to the
DSP-100 is the ideal choice when only OS/2 programs will access the serial ports.
When configuring the hardware, the user simply specifies a list of COM port numbers.
When a DSP-100 is inserted into a PCMCIA socket, the client driver will configure the
card as a series of COM ports, starting with the lowest available port number in the list.
Configuring a DSP-100 with system assigned resources can be a problem, however, if
DOS and/or Windows applications will be accessing the serial ports. This is because
most DOS applications write directly to the communications hardware and the
Windows' Control Panel also wants to know the hardware configuration of the serial
ports. In these cases, the user may want to configure the DSP-100 with "user assigned"
resources.
8.1.1.1 Example 1
DEVICE=C:\DSP-100\DSP100.SYS COM3
In example 1, the Client Driver will attempt to configure the DSP-100 as COM3 and
COM4. If COM3 or COM4 already exists in the system, the DSP-100 will not be
configured. Furthermore, only one DSP-100 can be installed in this system.
8.1.1.2 Example 2
DEVICE=C:\DSP-100\DSP100.SYS COM7 COM3
In example 2, the Client Driver will attempt to configure the DSP-100 as COM3 and
COM4. If COM3 or COM4 already exists in the system, the Client Driver will attempt
to configure the DSP-100 as COM7 and COM8. If COM7 or COM8 already exist in the
system, the DSP-100 will not be configured. Up to two DSP-100s can be installed in this
system.
DSP-100 User's Manual 39