From: Greg KH <gregkh@linuxfoundation.org>
To: "Hans Beckérus" <hans.beckerus@gmail.com>
Cc: Alexander Shiyan <shc_work@mail.ru>, linux-serial@vger.kernel.org
Subject: Re: Re[2]: USB serial support / Prolific PL2303 Driver
Date: Mon, 8 Apr 2013 09:29:45 -0700 [thread overview]
Message-ID: <20130408162945.GA26133@kroah.com> (raw)
In-Reply-To: <CAFyqS9qz+cHLY4zt1Bmuf6ubov57T3dKTP7B2d2g=ta=Qwg98g@mail.gmail.com>
On Mon, Apr 08, 2013 at 06:20:23PM +0200, Hans Beckérus wrote:
> Sure, dmesg will show me the details, but I would really like to have
> it in real-time ;) Actually when I set console=ttyUSB0,115200 all I
> get is the prompt :( Nothing comes out from the boot, and it does not
> seem to act as a real console either since any thing that usually pops
> up there are only showing in dmesg now. Do I need to configure the
> kernel in some specific way to support USB console mode?
You do have:
CONFIG_USB_SERIAL_CONSOLE
enabled, right?
USB starts as one of the last things in the kernel boot process, so the
best you can ever get is a summary of what happened during the boot, not
the kernel boot messages as they happen because they happen before the
USB device is initialized.
greg k-h
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next prev parent reply other threads:[~2013-04-08 16:29 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-08 13:37 USB serial support / Prolific PL2303 Driver Hans Beckérus
2013-04-08 15:03 ` Greg KH
2013-04-08 15:06 ` Re[2]: " Alexander Shiyan
2013-04-08 15:57 ` Hans Beckérus
2013-04-08 16:03 ` Greg KH
2013-04-08 16:20 ` Hans Beckérus
2013-04-08 16:29 ` Greg KH [this message]
2013-04-08 17:35 ` Hans Beckerus
2013-04-08 18:19 ` Greg KH
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