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Message-ID: <20091018162737.18611.qmail@stuge.se> Date: Sun, 18 Oct 2009 18:27:37 +0200 From: Peter Stuge <peter@...ge.se> To: Alan Cox <alan@...rguk.ukuu.org.uk> Cc: linux-kernel@...r.kernel.org Subject: Re: Hardware initialization in line discipline - ldisc_open() ? Alan Cox wrote: > > > Similar problem with the GSM mux I've been working on. I've gone for > > > making the ldisc attach always work and then kicking things off via an > > > ioctl which sets the desired mode/parameters/encoding. > > > > I'll do the same. Did you add a new ioctl for this, or use an > > existing one? > > I added a private one - given I needed to pass the adaption layer code, > gsm mux level and whether we were initiator or not it didn't really fit > anything generic in the tty layer. I was trying to reuse an existing ioctl, partly because I'm not sure how to add a one and partly because fewer are better, but TIOCSERCONFIG which seemed fitting does not appear to be passed on to my ldisc. :\ Should I make a new one (what does private mean here btw?) and how do I do it exactly? Is patching Documentation/ioctl/ioctl-number.txt and asm/ioctls.h all? The "addressing" in ioctl-number seems a little chaotic, do I just pick anything that is available? //Peter -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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