B&B Electronics SPP-100 - Manual - Manual (Page 48)

7.3 Interrupts for the SPP-100 Under OS/2
If using OS/2 Version 2.1, the client driver will not use interrupts for
parallel ports. All parallel ports operate in a polled mode. This is true for
both PCMCIA and non-PCMCIA ports. (Note that this is a change from
the standard parallel port device driver, which always requires IRQ7 for
LPT1 and LPT2 and IRQ5 for LPT3.
If using OS/2 Version 3.0 and above, the client driver will use interrupts
for parallel ports if the /IRQ switch is present on the driver's command
line. If the switch is not present, polled mode is used for all parallel ports.
To use IRQs, the driver's CONFIG.SYS line should read:
BASEDEV=SPP100.SYS /IRQ
The "/IRQ" switch changes the configurations to include IRQs.
Configuration 1: LPT2 at base address 378H, using IRQ7.
Configuration 2: LPT3 at base address 278H, using IRQ5.
7.4 EPP Mode Under OS/2
EPP operation is not supported by OS/2, and therefore no command
switch on the client driver exists to place the SPP-100 into EPP mode.
7.5 Monitoring The Status Of PCMCIA Cards
OS/2 Warp provides a utility called "Plug and Play for PCMCIA" that can
be used to monitor the status of each PCMCIA socket. In OS/2 version
2.1, this utility is called "Configuration Manager". When an SPP-100 is
inserted, the Card Type for the appropriate socket will display "Parallel".
If the card is successfully configured, the Card Status will display
"Ready". If the card cannot be configured, the Card Status will be "Not
Ready". You can view the resources claimed by a configured card by
double-clicking on that card's line in the window.
7-4 Quatech Inc.