Date: Fri, 22 Jul 2016 12:16:07 -0500 From: Karl Denninger <karl@denninger.net> To: freebsd-usb@freebsd.org Subject: Re: Digi Watchport/T temperature sensor as /dev/ttyU Message-ID: <2e196c65-1de6-3627-9bd8-633763727a55@denninger.net> In-Reply-To: <1469206374.84197.14.camel@freebsd.org> References: <20160722183556.2fc39fd7.ohartman@zedat.fu-berlin.de> <1469206374.84197.14.camel@freebsd.org>
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[-- Attachment #1 --] On 7/22/2016 11:52, Ian Lepore wrote: > On Fri, 2016-07-22 at 18:35 +0200, O. Hartmann wrote: >> For temperature monitoring, we have a bunch of Digi Watchport/T >> sensors: >> >> http://ftp1.digi.com/support/documentation/90000406_H.pdf >> >> > [...] > > I think the attached patch will make it show up as a ttyU*/cuaU* device > for you. (You should probably use the /dev/cuaU* flavor, to avoid > problems with tty layer and modem control signals). > > I keep wishing we had a mechanism, like a sysctl that could be set or > something, that would let you supply a vendor/product pair and have the > ugensa driver attach to that device, for quick testing of this sort of > thing. > > -- Ian > What do you think about my screwing with the driver to provide a modest-sized dynamic stack that would use the sysctl interface to add/delete vendor/product pairs for this purpose? With a modest but reasonable limit this then becomes something that can be used in a production environment since you probably would have a modest number of these devices on USB for any particular individual system and now you don't have to futz with the kernel to add/remove them. I implemented an application read/write piece to a ugen-attached device but it would have been nice to be able to poke this instead via such a "hook"; if I write it and submit it as a PR what do people think about its odds of being committed? -- Karl Denninger karl@denninger.net <mailto:karl@denninger.net> /The Market Ticker/ /[S/MIME encrypted email preferred]/ [-- Attachment #2 --] 0 *H 010 `He 0 *H _0[0C)0 *H 01 0 UUS10UFlorida10U Niceville10U Cuda Systems LLC1 0UCuda Systems LLC CA1"0 *H Cuda Systems LLC CA0 150421022159Z 200419022159Z0Z1 0 UUS10UFlorida10U Cuda Systems LLC1 0 UKarl Denninger (OCSP)0"0 *H 0 X@vkY Tq/vE]5#֯MX \8LJ/V?5Da+ sJc*/r{ȼnS+ w")ąZ^DtdCOZ ~7Q '@a#ijc۴oZdB&!Ӝ-< ? HN5y 5}F|e f"V لio74zn">a1qWuɖbFeGE&3(KhixG3!#e_XƬ Ϝ/,$+;4y 'Bz<qT9_?rRUpn5 Jn&Rx/p Jyel*pN8/#9u/YP EC)TY>~/˘N[vyiDKˉ ,^" ?$T8 v& K%z8C @?K{9f`+@,| Mbia 007++0)0'+0http://cudasystems.net:88880 U 0 0 `HB0 U 0, `HB OpenSSL Generated Certificate0 U -h\Ff Y0 U #0$q}ݽʒm50 U 0karl@denninger.net0 *H Owbabɺx&Uk[ (Oj!%p MQ0I!#QH}.>~2&D}<wm_>V6 v ]f>=Nn+8;q wfΰ/RLyUG#b}n!Dր _up|_ǰc/%ۥ nN8:d;-UJd/m1~VނיnN I˾$tF1&}|?q?\đXԑ&\4V<lKۮ3%Am_(q -(cAeGX)f}-˥6cv~Kg8m~v ;|9:-iAPқ6ېn-.)<[$KJtt/L4ᖣ^Cmu4vb{+BG$M0c\[MR|0FԸP&78"4p# }D Z9;V9#>Sw"[UP710001 0 UUS10UFlorida10U Niceville10U Cuda Systems LLC1 0UCuda Systems LLC CA1"0 *H Cuda Systems LLC CA)0 `He M0 *H 1 *H 0 *H 1 160722171607Z0O *H 1B@u ?g# E([i#+skI9 Y O zEVQ#Ky)e0l *H 1_0]0 `He*0 `He0 *H 0*H 0 *H @0+0 *H (0 +71001 0 UUS10UFlorida10U Niceville10U Cuda Systems LLC1 0UCuda Systems LLC CA1"0 *H Cuda Systems LLC CA)0 *H 101 0 UUS10UFlorida10U Niceville10U Cuda Systems LLC1 0UCuda Systems LLC CA1"0 *H Cuda Systems LLC CA)0 *H o_e9Ğ=%sz*PHʶR02di~c2Mj%{' 5 q/ Q.<ZΏޤsLxuhs͔ Xƃ7m` t` x;9J9-?od(}SQkf&<Hi~C6V\ߚAps4ƬhUH|}( % fFZqsʛ t[?aPsC_P_Bmu_Ɯ&& Ƅ62o^ *QܤAqAm`,#ގRTɦ0!R,#T2 k K#f5WsSՄXԦA;> {ooekރԀNf+'bp $ԯFaϯTC5;^7Sg{-xSCJ#Z(|̂rALc j=:kʅv.FB j٪݉?]
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