parport problems, thanks to Dino Klein

Hi all :)

Finally I got ECP working. The solution: activate
CONFIG_EXPERIMENTAL and CONFIG_PARPORT_PC_FIFO (in 2.4.26, at least), and get rid of EPP+ECP mode in BIOS. Now I have only ECP in BIOS (I tested more modes, anyway) and the kernel detects correctly the parallel port as long as I provide the irq, dma, io and io_hi settings to the module.

My other problem was lack of IEEE1284 support, and, once ECP
detected, I went to solve this. The problem was related to cabling and one digital printer sharing device. The device detects automatically which input wants the printer, so you don't need to manually turn the knob ;). That device was eating the IEEE1284 signalling, and once removed all works ok.

The parport module still does weird things when the BIOS mode is
not EPP nor ECP, or when I want it to autodetect the parallel port, but at least now prints correctly, fast and tells me when I'm out of paper ;))

I want to thank Dino Klein for his highly valuable help, trying
to solve my problem. He has helped me to find the cause of the problem, even backporting his 2.6 ACPI patch to my 2.4.26 kernel. Is people like him that makes free software the way it is, and really no money could buy such a good and friendly support. Thanks a lot, Dino.

Raúl Núñez de Arenas Coronado

Linux Registered User 88736
http://www.pleyades.net & http://raul.pleyades.net/