Date: Fri, 26 Aug 2016 15:38:42 +0200 From: "O. Hartmann" <ohartman@zedat.fu-berlin.de> To: Ian Lepore <ian@freebsd.org> Cc: Warner Losh <imp@bsdimp.com>, Kevin Oberman <rkoberman@gmail.com>, FreeBSD CURRENT <freebsd-current@freebsd.org>, "freebsd-usb@FreeBSD.org\" <freebsd-usb@freebsd.org> Subject: Re: Digi Watchport/T temperature sensor as /dev/ttyU Message-ID: <20160826153842.586a559b@freyja.zeit4.iv.bundesimmobilien.de> In-Reply-To: <1469387555.84197.48.camel@freebsd.org> References: <20160722183556.2fc39fd7.ohartman@zedat.fu-berlin.de> <1469206374.84197.14.camel@freebsd.org> <20160723220430.34ce02fe.ohartman@zedat.fu-berlin.de> <1469306951.84197.31.camel@freebsd.org> <20160724080330.3a27e875.ohartman@zedat.fu-berlin.de> <20160724083859.4c0dd392@ernst.home> <20160724105134.184f0b7f.ohartman@zedat.fu-berlin.de> <1469379334.84197.40.camel@freebsd.org> <CAN6yY1tUg0GeNn6hkO9NPKyKO2z58erzOYT3PkYSQ1yiX0t0Gg@mail.gmail.com> <CANCZdfoVnZHmmvNcrJgaZ2k8o6e150LGFa0svufgodn6jeJu0Q@mail.gmail.com> <1469387555.84197.48.camel@freebsd.org>
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On Sun, 24 Jul 2016 13:12:35 -0600 Ian Lepore <ian@freebsd.org> wrote: > On Sun, 2016-07-24 at 12:52 -0600, Warner Losh wrote: > > On Sun, Jul 24, 2016 at 12:42 PM, Kevin Oberman <rkoberman@gmail.com> > > wrote: > > > There are several different USB serial drivers. Off-hand I see > > > ubser, ubsa, > > > uchcom, ucom, ucycom, uftdi, ubgensa, umcs, umct, umoscom, uplcom, > > > usb_serial, uslcom, and uvscom. Whether any of these will support > > > the TI > > > chip, I can't say. Most have man pages, but a few, as has been > > > noted, are > > > lacking one. > > > > I tried to automate discovery of these things. However, the only way > > you can really know for sure about the TI chip is to read it's > > datasheet > > and compare that with extant drivers. It's actually easier than it > > sounds. > > > > I've often thought of unification of the TTY USB drivers, since they > > are > > most (but not all) based on the standard plus extra bits. > > > > Warner > > To reiterate: we do not have a driver for TI 5052 chips. > > It's not much like other usb-serial chips. In fact it's not strictly a > usb-serial chip, it's a multifunction chip that includes a software > -controllable usb hub, 2 serial ports, gpio, an i2c bus master, an MCU > interface, a multichannel DMA controller, and apparently even has the > ability to download your own 8052-compatible microcontroller code into > the 5052 and have it take over from the built-in rom code. > > It would be reasonable enough to write a driver that initially > supported only the uart part of the chip. > > -- Ian It is me again. I opened one of those digi watchports since I read that Ti has discontinued the TI5052 chip and encourage developers to use a newer one. The print on the chip itself residing on the PCB is TUSB3410I and this refers to a Ti TUSB3410 as it is referred to by the TI 5052 page: http://www.ti.com/product/TUSB3410 I never wrote a driver my own, so starting from scratch would be inefficient, but for the long shot, it might be an idea. Thanks anyway for the efford taken to look into it. I hope we will see at least some manpage for ugensa. I'm still looking for simple sensor devices which could be attached to FreeBSD for monitoring temperature and/or humidity - as it was intended by using the digi watchport. I'm now with an experimental piece of hardware with two DALLAS DS18B20 temperature sensors. It is a USB interface PCB with an AT90USB162 microcontroler chip. Attached to a FreeBSD 12-CURRENT system, it reports itself as a UHID device. there is also a software package available - for Windows and Linux, but it doesn't work for FreeBSD, the package compiles and produces a cmdline binary, but it fails reading the sensor data - the uhid driver seems to be unloaded during the call. I have no skills in writing low-level USB software, so my explanation is slopy, sorry. But there is hope I can use this one. Kind regards, Oliver
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