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Ah, I think the port should be in ECP mode. I found this: |
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|
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parport0: PC-style at 0x1fff13043bc (0x1fff13047bc), irq 8687936, dma 0 |
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[PCSPP,TRISTATE,COMPAT,ECP,DMA] |
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|
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That says "ECP, DMA". |
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|
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Now it seems to be because of the cable... |
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|
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在 2006-06-22四的 20:09 +0800，张韡武写道： |
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> Maybe this is interesting? |
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> |
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> 在 2006-06-22四的 18:38 +0800，张韡武写道： |
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> |
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> > lp0: using parport0 (interrupt-driven). |
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> [snip] |
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> > parport0: FIFO is stuck |
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> > parport0: BUSY timeout (1) in compat_write_block_pio |
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> > DMA write timed out |
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> > parport0: FIFO is stuck |
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> > parport0: BUSY timeout (1) in compat_write_block_pio |
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> > DMA write timed out |
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> > parport0: FIFO is stuck |
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> > parport0: BUSY timeout (1) in compat_write_block_pio |
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> > DMA write timed out |
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> |
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> I read some articles suggesting that in order to make printer work, the |
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> parallel port need to work in ECP mode, the cable has to be IEEE1284 |
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> (bidirectional). |
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> |
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> 1) I don't know how to check if the port is in ECP mode. I used to check |
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> it with BIOS utilities on x86 but I don't know how to get this info on |
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> sparcs. A quick google search with 'ECP OBP' doesn't give needed info. |
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> 2) I don't know how to test the cable if it is bidirectional or not. But |
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> I thought it is difficult to get a unidirectional cable, so it might |
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> be... |
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> |
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> How do you suggest? Thanks in advance:) |
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> |
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|
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-- |
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