Re: [Gta04-owner] [PATCH 2/3] TTY: add support for tty_slave devices.

On Wed, 25 Mar 2015 12:30:00 -0400 Peter Hurley [off-list ref]
wrote:

On 03/18/2015 01:58 AM, NeilBrown wrote:

quoted

+ * A "tty-slave" is a device permanently attached to a particularly
+ * tty, typically wired to a UART.

Why "permanently"?
Is that a limitation of the implementation or design?

The slave is described in devicetree - that only happens for permanently
attached devices, doesn't it?

I guess that with device-tree overlays and 'capes' for boards you could have
a device attached to the uart "for this power session" rather than
"permanently", but I think it is a rather subtle distinction.

Did you have something else in mind?

NeilBrown