On 7/3/19, Bobby Jones <rjones@xxxxxxxxxxxxx> wrote: > Hi Martin and linux-iio, > > I have a device using the LSM9DS1 and saw that you added support for > the magnetometer of the chip but I was unable to follow what was done > for the accel and gyro of the same part. Was this still something > you're working on or perhaps those components are compatible with > another st device? > Hi Bobby, I'm on vacation right now so I'll be able to reply only sporadically, but I'll do my best. Basically, the LSM9DS1 accelerometer and gyroscope share a FIFO, which means they can't be controlled independently. This breaks the current abstraction of having two separate drivers for accelerometer and gyroscope. The correct but more difficult solution is to create a combined driver that supports both functions and understands the FIFO interaction. No one has done this work yet. More details here, in which I submitted a patch for accelerometer support, which was rejected for the above reasons: https://patchwork.kernel.org/patch/10138321/ Hopefully this answers your question. Let me know if you need more information. > Thanks, > Bobby Jones >
