Date: Mon, 28 Dec 2009 19:28:28 +0100 From: Hans Petter Selasky <hselasky@c2i.net> To: freebsd-usb@freebsd.org Subject: Re: usb thermometer - TEMPer - FreeBSD Message-ID: <200912281928.29262.hselasky@c2i.net> In-Reply-To: <20091228020056.9d2df2d3.torfinn.ingolfsen@broadpark.no> References: <20090414235727.38d16ee1.torfinn.ingolfsen@broadpark.no> <200911032256.58552.hselasky@c2i.net> <20091228020056.9d2df2d3.torfinn.ingolfsen@broadpark.no>
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On Monday 28 December 2009 02:00:56 Torfinn Ingolfsen wrote: > On Tue, 03 Nov 2009 22:56:57 +0100 > > Hans Petter Selasky <hselasky@c2i.net> wrote: > > On Tuesday 03 November 2009 22:27:03 Torfinn Ingolfsen wrote: > > > But where is ucom0? > > > root@kg-t2# ls -l /dev/uc* > > > ls: /dev/uc*: No such file or directory > > > root@kg-t2# ls -l /dev/ucom0 > > > ls: /dev/ucom0: No such file or directory > > > root@kg-t2# ls -l /dev/ucom0 > > > > /dev/cuaU0 > > Ok, I have done some more testing with the TEMPer. I have kldloaded uchcom. > root@testhost-1# uname -a > FreeBSD testhost-1.kg4.no 8.0-STABLE FreeBSD 8.0-STABLE #0: Sat Dec 12 > 23:49:41 CET 2009 root@testhost-1.kg4.no:/usr/obj/usr/src/sys/GENERIC > amd64 In /var/log/messages: > Dec 27 23:07:43 testhost-1 kernel: ugen1.2: <vendor 0x4348> at usbus1 > Dec 27 23:07:43 testhost-1 kernel: ucom0: <vendor 0x4348 USB-SER!, rev > 1.10/2.50, addr 2> on usbus1 Dec 27 23:07:43 testhost-1 kernel: ucom0: > CH340 detected > I took TEMPer.c[1] from Tollef Fog Heen's site, changed the device from > /dev/ttyUSB0 to /dev/ttyU0 and compiled with > > gcc -lm -o TEMPer2 TEMPer2.c > > and tested it: > root@testhost-1# ./TEMPer2 > Init starting > Init done > ^Croot@testhost-1# > It hangs after "Init done" until I break out of it with Ctrl-C. This is > strange, the same code works fine un Linux: tingo@kg-home:~$ uname -a > Linux kg-home 2.6.31-16-generic #53-Ubuntu SMP Tue Dec 8 04:01:29 UTC 2009 > i686 GNU/Linux tingo@kg-home:~$ ~/work/temper/TEMPer > Init starting > Init done > Getting temperature done 0001100010000000. 24.500000 > Getting temperature done 0001100010000000. 24.500000 > Getting temperature done 0001100010000000. 24.500000 > Getting temperature done 0001100100000000. 25.000000 > Getting temperature done 0001100010000000. 24.500000 > Getting temperature done 0001100000000000. 24.000000 > Getting temperature done 0001100000000000. 24.000000 > Getting temperature done 0001100010000000. 24.500000 > Getting temperature done 0001100010000000. 24.500000 > Getting temperature done 0001100100000000. 25.000000 > ^C > > I wonder if it is the driver in FreeBSD or something different in the tty > initialization? Anyway, I have made a FreeBSD[2] and a Linux[3] page with > all the details. > > References: > 1) http://err.no/src/TEMPer.c > 2) http://sites.google.com/site/tingox/temper_freebsd > 3) http://sites.google.com/site/tingox/temper_xubuntu Hi, I think you need to turn off line buffering on stdin/stdout. There should be an ioctl somewhere. --HPS
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