From: Tomi Manninen OH2BNS (nxmf.zfwie@relay.tunkki.fi)
Date: Fri Jan 10 2003 - 10:11:01 EET
On Thu, 9 Jan 2003, James Washer wrote:
> 1)I'm confused by this whole AX.25 kernel thing... I had assumed that
> (most) TNCs handled the AX.25 protocol themselves. I understand that
> with a soundmodem, the linux system would have to do the AX.25, but
> what about if I use an off-the-shelf TNC ( kpc3 for example ). Does
> linux arrange to turn the AX.25 handling OFF in the TNC and do it in
> software?
Yes, typically the TNC is put to a so called KISS mode (6PACK is another
alternative). In KISS mode the TNC only handles modulation and
demodulation, HDLC en/decoding (bit stuffing and framing that is) and
AX.25 CRC checking. Everything else is left to the PC.
This is basically the only sane way to be able to support higher level
protocols on top of AX.25. Also it makes the simple text mode support much
more flexible.
> 2) Can I put more than one sound card in my linux box.. One for music,
> the other, perhaps multiple soundcards, for packet?
Yes.
-- Tomi Manninen Internet: terhi.victor@logonet.com OH2BNS AX.25: nqjxnw.sgeryeddas@kerailya.tunkki.fi KP20ME04 Amprnet: rrn.hhmxecdddw@austincc.edu- To unsubscribe from this list: send the line "unsubscribe linux-hams" in the body of a message to qtsy.nfkejgpbq@dialup.ufpe.br More majordomo info at http://vger.kernel.org/majordomo-info.html
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