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Message-ID: <1423483922.2246.112.camel@x220> Date: Mon, 09 Feb 2015 13:12:02 +0100 From: Paul Bolle <pebolle@...cali.nl> To: Karsten Keil <kkeil@...ux-pingi.de> Cc: Tilman Schmidt <tilman@...p.cc>, Joe Perches <joe@...ches.com>, Sergei Shtylyov <sergei.shtylyov@...entembedded.com>, Bas Peters <baspeters93@...il.com>, isdn@...ux-pingi.de, julia.lawall@...6.fr, davem@...emloft.net, netdev@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: Kill I4L? On Mon, 2015-02-09 at 00:59 +0100, Karsten Keil wrote: > Am 08.02.2015 um 20:47 schrieb Tilman Schmidt: > > Am 07.02.2015 um 21:43 schrieb Paul Bolle: > >> 2) Broader picture: if I remember correctly there are now four > >> different flavors of ISDN in the kernel: - really old: pre-i4l > > > > I don't think any traces of that are still present in current kernel > > releases. It should all have been left behind on the switch to 2.6. > > Yes. I just refreshed my memory: drivers/isdn/hysdn predates I4L. It was added in v2.3.45, while I4L was mainlined in v2.6.4. But, on the other hand, one can optionally use HYSDN via "just old" CAPI. (HYSDN looks a bit odd. By default "they register as ethernet card". I guess this will only work if both ends of the ISDN connection have a setup like that. But, who knows, maybe someone is still using HYSDN in that way. www.hypercope.de serves "Sponsored Listings", by the way.) > >> - very old: i4l - just old: CAPI - not so old: mISDN > > > > Those are the in-tree ones. To make matters worse, the Asterisk people > > invented three more (Zaptel, DAHDI and vISDN) which are maintained > > out-of-tree. Apparently they weren't satisfied with any the in-tree > > ones and didn't feel like helping to improve one of them to match > > their needs. > > > >> [snip] So the current ISDN situation is a bit messy. > > > > That's putting it mildly. > > > >> Tilman might be able to provide a clearer, and maybe less grumpy, > >> summary of the current situation. > > > > Don't know about either. ;-) Paul Bolle -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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