3.3 Configuring With "User Assigned" Resources
As mentioned in the previous section, allowing the OS/2 Plug-and-Play system to assign the hardware resources to the QSP-100 is ideal for OS/2 programs but can be a problem if DOS and/or Windows applications will be accessing the serial ports. This is because most DOS appli- cations write directly to the communications hardware and the Windows' Control Panel also wants to know the hardware configuration of the serial ports. For this reason, the QSP-100 Client Driver allows the user to request specific hardware settings using a series of command line arguments of the form
| (port,address,irq) |
port | specifies the beginning COM port number |
address | specifies the base I/O address of the QSP-100 in hexadecimal and must reside on an |
| even 32-byte (20H) boundary. |
irq | specifies the interrupt level (IRQ) of the QSP-100 in decimal. irq must be one of |
| the following values: 3, 4, 5, 7, 9, 10, 11, 12, 14, or 15. |
Each argument must be enclosed in parentheses and must be separated from other arguments by a space on the command line. Within each argument, the parameters must be separated using a comma (no spaces).
When a QSP-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.
IMPORTANT:
If the user specified resources are in-use by other devices in the system, the QSP-100 will not be configured.
1.1.1.1Example 1
DEVICE=C:\QSP-100\QSP100.SYS (3,100,5)
In example 1, the Client Driver will attempt to configure the QSP-100 as COM3 through COM6 using I/O addresses 100-11F hex and IRQ 5. If COM3, 4, 5, or 6 already exists, or if the I/O address or IRQ resources are already in use, the QSP-100 will not be configured. Furthermore, only one QSP-100 can be installed in this system.
1.1.1.2Example 2
DEVICE=C:\QSP-100\QSP100.SYS (7,120,15) (3,300,4)
