From mboxrd@z Thu Jan 1 00:00:00 1970 From: dwalker@codeaurora.org (Daniel Walker) Date: Wed, 13 Oct 2010 13:49:35 -0700 Subject: [PATCH] serial: DCC(JTAG) serial and console emulation support In-Reply-To: References: <1286305668-19987-1-git-send-email-dwalker@codeaurora.org> <201010132145.30550.arnd@arndb.de> <1286999522.28336.15.camel@c-dwalke-linux.qualcomm.com> <201010132210.17061.arnd@arndb.de> <1287001466.28336.31.camel@c-dwalke-linux.qualcomm.com> Message-ID: <1287002975.28336.44.camel@c-dwalke-linux.qualcomm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Wed, 2010-10-13 at 16:44 -0400, Nicolas Pitre wrote: > On Wed, 13 Oct 2010, Daniel Walker wrote: > > > On Wed, 2010-10-13 at 22:10 +0200, Arnd Bergmann wrote: > > > On Wednesday 13 October 2010 21:52:02 Daniel Walker wrote: > > > > > Seriously, I don't think you need it, but if you really do, we can probably > > > > > find a way to work around this by changing the base hvc driver. > > > > > > > > I think we would have to add something that allows different major/minor > > > > numbers, because something that includes the name "Hypervisor" shouldn't > > > > be used for something general.. /dev/hvcX is also registered for "IBM > > > > iSeries/pSeries virtual console" (according to www.lanana.org) which is > > > > confusing .. > > > > > > That only means we need to update the lanana entry now that the hvc driver > > > is used on nine different platforms (not including yours) instead of ust > > > pSeries. Feel free to come up with a backronym for HVC if you're > > > uncomfortable with the old "hypervisor console" name. > > > > If you read back in this thread you'll see how there was a discussion > > already on how you shouldn't re-use major/minor numbers for other > > purposes .. It looks like "hvc" was essentially overridden , which now > > seems like a no-no given that discussion.. This appears to be a > > sensitive topic. > > And I violently disagree with this interpretation. > > The tty layer was probably the first subsystem to have been implemented > in Linux. There are a big deal of legacy with its device naming. When > adding new subsystems we don't need to perpetuate this. Maybe that made > sense 20 years ago, but let's leave ttyS0 alone and use good sense for > new stuff. Your still confusing me here Nico .. It seems like your suggesting adding new overrides is not OK , yet your also saying it is ok ? Are you saying overrides are OK for anything other than ttyS ? Daniel -- Sent by a consultant of the Qualcomm Innovation Center, Inc. The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.