I'm just trying to rationalise something in my head... In staging, there exists both iio, and comedi - which both seem to do similar things (capture/create external analog signals), just with different busses -- which is really different platforms (Desktop - PCI, PCIe vs embedded - I2C, SPI, SoC, etc). ./staging/iio ./staging/comedi the problem (to me) is two different userspace interfaces. For userspace, for those "typical" applications - oscilloscope, generator, strip chart recorder, etc - it would be nice to have a common userspace lib between the two - so I can prototype on a desktop via PCI DAQ card, and run on my embedded system with a SPI converter. I can't be the only one asking if there any desire to unify these before they are moved to mainline (out of staging). If there isn't - that's OK too. Thanks -Robin For those not familiar with the other: >From ./staging/iio/Documentation ------------------------------------ Overview of IIO The Industrial I/O subsytem is intended to provide support for devices that in some sense are analog to digital convertors (ADCs). As many actual devices combine some ADCs with digital to analog convertors (DACs) the intention is to add that functionality at a future date (hence the name). The aim is to fill the gap between the somewhat similar hwmon and input subsystems. Hwmon is very much directed at low sample rate sensors used in applications such as fan speed control and temperature measurement. Input is, as it's name suggests focused on input devices. In some cases there is considerable overlap between these and IIO. A typical device falling into this category would be connected via SPI or I2C. ----------------------------------- and from: http://www.comedi.org/doc/index.html#INTRODUCTION ----------------------------------- Comedi is a free software project that develops drivers, tools, and libraries for various forms of data acquisition: reading and writing of analog signals; reading and writing of digital inputs/outputs; pulse and frequency counting; pulse generation; reading encoders; etc. ----------------------------------- -- 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
