mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
41 lines
1.6 KiB
Plaintext
41 lines
1.6 KiB
Plaintext
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README file for the PCBIT-D Device Driver.
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------------------------------------------------------------------------------
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The PCBIT is a Euro ISDN adapter manufactured in Portugal by Octal and
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developed in cooperation with Portugal Telecom and Inesc.
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The driver interfaces with the standard kernel isdn facilities
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originally developed by Fritz Elfert in the isdn4linux project.
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The common versions of the pcbit board require a firmware that is
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distributed (and copyrighted) by the manufacturer. To load this
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firmware you need "pcbitctl" available on the standard isdn4k-utils
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package or in the pcbit package available in:
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ftp://ftp.di.fc.ul.pt/pub/systems/Linux/isdn
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Known Limitations:
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- The board reset procedure is at the moment incorrect and will only
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allow you to load the firmware after a hard reset.
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- Only HDLC in B-channels is supported at the moment. There is no
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current support for X.25 in B or D channels nor LAPD in B
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channels. The main reason is that these two other protocol modes have,
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to my knowledge, very little use. If you want to see them implemented
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*do* send me a mail.
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- The driver often triggers errors in the board that I and the
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manufacturer believe to be caused by bugs in the firmware. The current
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version includes several procedures for error recovery that should
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allow normal operation. Plans for the future include cooperation with
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the manufacturer in order to solve this problem.
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Information/hints/help can be obtained in the linux isdn
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mailing list (isdn4linux@listserv.isdn4linux.de) or directly from me.
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regards,
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Pedro.
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<roque@di.fc.ul.pt>
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