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Based on kernel version 4.3. Page generated on 2015-11-02 12:50 EST.

1	------------------------------------------------------------------------------
2	 README file for the PCBIT-D Device Driver.
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5	The PCBIT is a Euro ISDN adapter manufactured in Portugal by Octal and
6	developed in cooperation with Portugal Telecom and Inesc.
7	The driver interfaces with the standard kernel isdn facilities
8	originally developed by Fritz Elfert in the isdn4linux project.
10	The common versions of the pcbit board require a firmware that is 
11	distributed (and copyrighted) by the manufacturer. To load this
12	firmware you need "pcbitctl" available on the standard isdn4k-utils
13	package or in the pcbit package available in:
15	ftp://ftp.di.fc.ul.pt/pub/systems/Linux/isdn
17	Known Limitations:
19	- The board reset procedure is at the moment incorrect and will only
20	allow you to load the firmware after a hard reset.
22	- Only HDLC in B-channels is supported at the moment. There is no
23	current support for X.25 in B or D channels nor LAPD in B
24	channels. The main reason is that these two other protocol modes have,
25	to my knowledge, very little use. If you want to see them implemented
26	*do* send me a mail.
28	- The driver often triggers errors in the board that I and the
29	manufacturer believe to be caused by bugs in the firmware. The current
30	version includes several procedures for error recovery that should
31	allow normal operation. Plans for the future include cooperation with
32	the manufacturer in order to solve this problem.
34	Information/hints/help can be obtained in the linux isdn
35	mailing list (isdn4linux@listserv.isdn4linux.de) or directly from me.
37	regards,
38	  Pedro.
40	<roque@di.fc.ul.pt>
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