Re: Wait for console to become available, v3.2

[Arjan van de Ven]

On Tue, 21 Apr 2009 08:43:46 +0200
Ingo Molnar <mingo@xxxxxxx> wrote:

> The proper approach would be to use one of the async_synchronize*() 
> facilities in kernel/async.c to properly order the opening of the 
> console with device init.

Unfortunately this is not the answer.

First of all, USB does not use the async_* infrastructure, so it does
not do anything.
But more importantly... USB *CANNOT* do this fundamental operation.
USB does not have the capability to know when you have seen all devices
that are connected. Devices just show up a random amount of time after
you turn the power on for the bus.... there's no "and now we've seen
all" operation.

-- 
Arjan van de Ven 	Intel Open Source Technology Centre
For development, discussion and tips for power savings, 
visit http://www.lesswatts.org
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/