> Port detection (including /proc parsing) done for you, proper IEEE
> 1284 signal names instead of PC-style inverted ones, seemless use of
> direct I/O or /dev/port if /dev/parport* isn't available, possibility
i dont realy need this because my lpt ports are running fine with ppdev:
parport0: PC-style at 0x278, irq 9 [PCSPP]
parport1: PC-style at 0x378, irq 7 [PCSPP,EPP]
parport2: PC-style at 0x3bc, irq 10 [PCSPP]
> of working on other POSIX platforms, slightly better interface,
> slightly better documentation.
cant find any documentation in the tarball ;)
to my interupt-problem. ive the following pice of code. when i start
the program and trigger the ack line (pin 10) (shortcut pin 10 with ground),
the syslog says: spurious 8259A interrupt: IRQ7.
but my program didnt prints out printf("Got an INT\n");
do you know what iam making wrong ?
int irqc;
int nAck = PARPORT_STATUS_ACK;
int nFault = PARPORT_STATUS_ERROR;
int bussy = PARPORT_STATUS_BUSY;
int busy = nAck | nFault;
int acking = nFault;
int ready = busy | nAck | nFault;
char ch;
fd = claimdev(argv[1]);
ioctl (fd, PPWCTLONIRQ, &busy);
ioctl (fd, PPWCONTROL, &ready);
for (;;) {
fd_set rfds;
FD_ZERO (&rfds);
FD_SET (fd, &rfds);
if (!select (fd + 1, &rfds, NULL, NULL, NULL))
printf("Got an INT\n");
}
}
Norman.
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This archive was generated by hypermail 2b29 : Wed Feb 27 2002 - 10:21:10 EST