> > so the question is, can EPP be done with ppdev?
>
> Yes, and it's even been tested a little bit in 2.3.x.
ok, next question... we are using our device on these old Compaq computers
that only support ECP.
By writing 0x80 to port 0x378+0x402 we can set the ECP to do "EPP
compatibility mode" and everything works fine with doing direct EPP by
hitting the ports directly...
will ppdev know to do the above if I set IEEE1284_MODE_EPP on this
machine?
following is the relevant dmesg [this is 2.3.99-pre4-pre5 as 2.3.99-pre3
would oops whenever I did ppdev stuff].
0x378: FIFO is 16 bytes
0x378: writeIntrThreshold is 8
0x378: readIntrThreshold is 8
0x378: PWord is 8 bits
0x378: Interrupts are ISA-Pulses
0x378: ECP port cfgA=0x1c cfgB=0x4b
0x378: ECP settings irq=7 dma=3
parport0: PC-style at 0x378 (0x778) [PCSPP,TRISTATE,ECP]
parport0: irq 7 detected
parport0: cpp_daisy: aa5500ff(38)
parport0: assign_addrs: aa5500ff(38)
parport0: cpp_daisy: aa5500ff(38)
parport0: assign_addrs: aa5500ff(38)
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This archive was generated by hypermail 2b29 : Mon Apr 10 2000 - 20:05:01 EDT