eik@os.is (Einar Kjartansson) (02/08/88)
xxxx Does anyone know of a way to get exclusive use of the 27114A general purpose interface on HP 9000/840 . I have tried several ways, such as afi = open("/dev/gpio0",O_CREAT,O_EXCL) ; and gpio_control.type = GPIO_LOCK ; ioctl(afi,IO_CONTROL,&gpio_control) ; According to my reading of the manuals either method should do the job, but neither makes any difference. I have also been unable to get the interface to function in 8 bit mode ( I can get it to report back that is configured as 8 bits, but it always sends 16 bits out.) As the device on the other end (a Versatek plotter) has an 8 bit interface this means that I must send double the amount of data to the interface. With this as well the numerous other software errors that we have run into, talking to HP support has been a waste of time. The symptoms did not change when ve upgraded from HP-UX 1.04 to 1.20. Einar Kjartansson eik@geysir.UUCP Orkustofnun eik@OS.IS (National Energy Authority of Iceland) mcvax!hafro!geysir!eik Grensasvegi 9 geysir!eik@hafro.uucp IS-105 Reykjvik, Iceland Telehpone: 354-1-83600 or 354-1-16407
jeffh@weycord.WEYCO.COM (02/13/88)
> we upgraded from HP-UX 1.04 to 1.20...
If the s300 I/O is an example of I/O in HP-UX you've got a few more
updates to go. The s300 HP-UX op/sys is at 6.01 and it still has
problems.
I've not worked with the s800 much so I cannot be a judge. The one
thing I can say is IT'S NOT THE SAME. WHY ?
Jeff Harrell
hpubvwa!weycord!jeffh