On 20/05/16 14:56, Lasse Schuirmann wrote: > On 20 May 2016 at 15:53, <jic23@xxxxxxxxxxxxxxxxxxxxx> wrote: >> On 19.05.2016 22:12, Jonathan Cameron wrote: >>> >>> On 19 May 2016 19:14:52 BST, Lasse Schuirmann >>> <lasse.schuirmann@xxxxxxxxx> wrote: >>>> >>>> Hi, >>>> >>>> I'm trying to use Linux on a Lenovo Yoga 300 and can't get the >>>> accelerometer running. It was suggested at >>>> >>>> https://github.com/hadess/iio-sensor-proxy/issues/83#issuecomment-220399560 >>>> that I contact this mailing list as no driver seems to exist yet. >>>> >>>> The device in question is an accelerometer from "Bitland Corporation" >>>> with the APCI ID "DUAL250E". >>>> >>>> Windows drivers seem to be available at >>>> http://driverlibs.com/download/Dual-Accelerometer. >>>> >>>> I wonder if somebody possibly has the same problem and/or would be >>>> interested in helping getting this to work. >>>> >>>> Sincerely, >>>> >>>> Lasse Schuirmann >>> >>> >>> Hmm long shot but any idea if it could be a rebadged bma250e which is a >>> Bosch >>> sensortech part? Not sure what the dual bit would be about though. >>> >>> Digging in those windows drivers may give us more info. They are on >>> lenovos >>> website as well. >>> >>> On phone right now but will have a look tomorrow. >>> >> >> Hmm. The driver in question is based on Microsoft's example accelerometer >> driver >> for an ADXL345. >> >> https://msdn.microsoft.com/en-us/library/windows/hardware/dn760713(v=vs.85).aspx >> >> Not sure this is going to get us much further though... >> >> No usefully named function names that I can get out of the >> DualSPDAccelerometer.dll >> Not sure where to go next on reverse engineering this. Are you willing to >> open things up to take a look at what is on the board? > > This is not my device so I can't say definitely but I may well be able > to open it up once if you tell me what you're looking for as I'm not > much of a hardware person. Pretty much playing guess which chip is the accelerometer - tend to be perhaps 3x3mm and see if it has a logo on the top or a more detailed part number. Otherwise, I'm guessing the laptop no longer has windows on it, so trying to snoop on bus transfers is going to be 'tricky'. J > >> Few times I've gotten involved with doing this it's always been a case of >> getting >> some probes on the chip. There probably are other ways of doing it but >> I've no idea how in windows! >> >> My gut feeling is that Bitland don't make Mems devices so are getting it >> from >> someone else. Could be wrong, but it's someway from what their core >> business >> seems to be (putting generic stuff together to make machines for other >> people). >> >> Jonathan > -- > To unsubscribe from this list: send the line "unsubscribe linux-iio" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
