On Tue, 2 Feb 2010 15:12:38 +0100 Oliver Neukum <oliver@xxxxxxxxxx> wrote: > Hi, > > I am implementing reset_resume() in the sierra driver. It seems to me > that the best way to do that would be to simulate a sudden loss of > connection. To do so I need to know what a sierra device does if the > connection simply vanishes. I want to feed emulated error messages > to the tty layer to make NetworkManager deal nicely with this situation. The tty layer hangs up a port that vanishes so you just need to do tty_hangup(tty) where tty is a valid reference to the tty. The hangup occurs *asynchronously* and it can thus be called from an IRQ - but you do need to make sure you how have a valid refcounted tty handle. In quite a few drivers that tends to look like tty = tty_port_tty_get(&mumble->port); if (tty) tty_hangup(tty); tty_kref_put(tty); -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
