Hello to all,
I'm using libieee1284 0.1.6 for accessing the parallel port.
My configuration is:
FJS D1192 ATX Board
SuSE Linux 8.0 with 2.4.18-64GB-MPS Kernel.
struct parport_list device_list;
struct parport *device;
int i, result;
ieee1284_find_ports( &device_list, 0 );
if (device_list.portc>0) device = *(device_list.portv);
result = ieee1284_open(
ieee1284_write_data( device, 120);
It runs pretty good, while you don't care what the parport does. While
you are running in superuser mode, the program doesn't produce any
So I tried to measure the voltages at the parport, but I didn't get nice
Pin 1: /Strobe = 3.5 V ( should be ? )
Pin 2: Data 0 = 0 V ( should be 5 V )
Pin 3: Data 1 = 0 V ( should be 5 V )
Pin 4: Data 2 = 3.5 V ( should be 5 V )
Pin 5: Data 3 = 0 V ( should be 5 V )
Pin 6: Data 4 = 0 V ( should be 5 V )
Pin 7: Data 5 = 0 V ( should be 5 V )
Pin 8: Data 6 = 0 V ( should be 5 V )
Pin 9: Data 7 = 0 V ( should be 5 V )
Pin A: Acknowledge = 3.5 V ( should be ? )
Pin B: Busy = 3.5 V ( should be ?)
Pin C: Paper End = 3.5 V ( should be ? )
Pin D:Select = 3.5 V ( should be ?)
and so on ( rest is ground ).
Seems to be that there is an error.
Who can help me?
Thanks Philipp Vollmer
PS: If the libieee1284 version is too old please tell me. I'm sorry but
don't have such big pipe as I could download anything more than
one or two times ( 28k ).
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This archive was generated by hypermail 2b29 : Thu Aug 22 2002 - 06:24:30 EDT