linux-kernel - Re: [PATCH 1/2] drivers:staging:ti-st: move TI

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Date:	Thu, 07 Oct 2010 20:26:08 +0200
From:	Jiri Slaby <jirislaby@...il.com>
To:	"Savoy, Pavan" <pavan_savoy@...com>
CC:	"gregkh@...e.de" <gregkh@...e.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devel@...verdev.osuosl.org" <devel@...verdev.osuosl.org>,
	"alan@...rguk.ukuu.org.uk" <alan@...rguk.ukuu.org.uk>
Subject: Re: [PATCH 1/2] drivers:staging:ti-st: move TI_ST from staging

On 10/07/2010 04:52 PM, Savoy, Pavan wrote:
> Per-system? I don't understand this.
> There can be ldisc for each individual TTY, so doesn't that make it per device?

No, you can have only up to NR_LDISCS ldiscs in the system and you have
to choose one of them to "handle" a particular tty.

IOW, you register an ldisc which is available for everybody then. And it
cannot have ->private_data since everybody would share this single
->private_data. Instead everybody comes with their devices as ttys which
have ->private_data for everybody's data and ->disc_data for you to note
anything about the (tty) device.

Am I missing something?

regards,
-- 
js
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