From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Fri, 10 Mar 2023 13:49:58 +0100 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1pacC5-00G4hi-5H for lore@lore.pengutronix.de; Fri, 10 Mar 2023 13:49:58 +0100 Received: from localhost ([127.0.0.1] helo=metis.ext.pengutronix.de) by metis.ext.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1pacC5-0006uY-8g; Fri, 10 Mar 2023 13:49:57 +0100 Received: from ginster.office.stw.pengutronix.de ([2a0a:edc0:0:900:1d::45]) by metis.ext.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1pacBd-0006uK-6U; Fri, 10 Mar 2023 13:49:29 +0100 Message-ID: <9cdd6b6076b14c6b97286fad7de99f9c4325468f.camel@pengutronix.de> From: Juergen Borleis To: Michael Olbrich Date: Fri, 10 Mar 2023 13:49:28 +0100 In-Reply-To: References: <20230309090850.148176-1-jbe@pengutronix.de> <20230309092906.GD3532@pengutronix.de> <6eaced15-c1d8-4f2e-9a2f-12931d170589@thorsis.com> <16802f944bc6d8e4df84cea80d1adaf9c17a04a2.camel@pengutronix.de> Organization: Pengutronix e.K. Content-Type: text/plain; charset="UTF-8" User-Agent: Evolution 3.38.3-1+deb11u1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [ptxdist] [PATCH] libmodbus: adapt help text to the reality X-BeenThere: ptxdist@pengutronix.de X-Mailman-Version: 2.1.29 Precedence: list List-Id: PTXdist Development Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: ptxdist@pengutronix.de, jbe@pengutronix.de Cc: Ladislav Michl , ptxdist@pengutronix.de Sender: "ptxdist" X-SA-Exim-Connect-IP: 127.0.0.1 X-SA-Exim-Mail-From: ptxdist-bounces@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false Am Freitag, dem 10.03.2023 um 12:57 +0100 schrieb Michael Olbrich: > On Thu, Mar 09, 2023 at 02:29:25PM +0100, Juergen Borleis wrote: > > Am Donnerstag, dem 09.03.2023 um 14:24 +0100 schrieb Ladislav Michl: > > > On Thu, Mar 09, 2023 at 10:38:15AM +0100, Alexander Dahl wrote: > > > > Hei hei, > > > > > > > > Am Thu, Mar 09, 2023 at 10:29:06AM +0100 schrieb Michael Olbrich: > > > > > On Thu, Mar 09, 2023 at 10:08:50AM +0100, Juergen Borleis wrote: > > > > > > With change a08638d93d19624cf3c20d033ea8f61b96c43408 > > > > > >   "libmodbus: version bump 2.0.4 -> 3.0.8" > > > > > > libmodbus changed from 2.x.x to 3.0.x version like libmodbus3 did. > > > > > > > > > > > > And with change a76b31d5b637bc89ca26e7fa81503cbc7632b666 > > > > > >   "libmodbus3: version bump 3.0.6 -> 3.1.4" > > > > > > libmodbus3 switched to the recent to 3.1.x version. > > > > > > > > > > Hmmm, it feels like there were supposed to be for two packages, one for > > > > > version 2.x and one for 3.x, at least it started that way. > > > > > I don't really know anything about libmodbus. Are the two versions > > > > > incompatible? > > > > > > > > Yes, 3.0.x and 3.1.x have incompatible APIs and probably ABIs. > > > > 3.0.x has .so version 5 and 3.1.x has .so version 6, at least to my > > > > notes and the code trying to distinguish this. > > > > > > > > Greets > > > > Alex > > > > > > > > > > > > > > Ladislav, you touched it last, you did the "2.0.4 -> 3.0.8". Do you have > > > > > any insight here? > > > > > > As Alex pointed out above, 2.0.x has incompatible API and was last > > > touched 12 years ago. I pretty much doubt anything sane currently depends > > > on it and the truth is I overlooked libmodbus3 while doing update. > > > > It is even more worse: 2.x.x API != 3.0.x API != 3.1.x API 🙂 > > I'm tempted to say we just need 3.1.x in PTXdist upstream. Unless updating > an application from 3.0.x to 3.1.x is difficult, because the API changed > a lot? I don't know. I read the documentation and it just pointed out this API incompatibility. Thus, no idea how difficult it would be to port a user from 3.0.x to 3.1.x. Jürgen -- Pengutronix e.K.                       | Juergen Borleis             | Steuerwalder Str. 21                   | https://www.pengutronix.de/ | 31137 Hildesheim, Germany              | Phone: +49-5121-206917-128 | Amtsgericht Hildesheim, HRA 2686       | Fax:   +49-5121-206917-9 |