From mboxrd@z Thu Jan 1 00:00:00 1970 From: Max Staudt Subject: Re: [PATCH] 8250: option 'force_polling' for buggy IRQs Date: Wed, 27 Jul 2016 14:14:24 +0200 Message-ID: <2b140616-c210-e754-a854-cd6a5675277d@suse.de> References: <1469468175-15704-1-git-send-email-mstaudt@suse.de> <20160725174712.GA5752@kroah.com> <20160726150856.GA15676@kroah.com> <20160727130923.4c20524b@lxorguk.ukuu.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20160727130923.4c20524b@lxorguk.ukuu.org.uk> Sender: linux-kernel-owner@vger.kernel.org To: One Thousand Gnomes Cc: Greg KH , linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org List-Id: linux-serial@vger.kernel.org On 07/27/2016 02:09 PM, One Thousand Gnomes wrote: >> I simply thought this patch may be useful for other people as well, that's >> why I sent it upstream. > > If you set the IRQ to 0 it should poll anyway (0 means 'no IRQ') so I > don't think the option is needed. At least it seems sufficient to get me > by when I meet buggy PC BIOSes and the like That's exactly what the patch does - but if there is already a way to set the IRQ to 0, I would of course prefer to use that. It seems I haven't found the trick you're using - could you please tell me how you set the IRQ to 0? I can't change it in the BIOS, so I have to do it at the kernel level at the latest. Thanks Max