Testing MPU-9250 in the NuttX shell using the i2c command

NuttX is fantastic, just like Linux is… except you cannot run Linux in a fast way in small microcontroller.

From NuttX shell (NSH) I could test if MPU-9250 is working, just reading the WHOAMI (0x75) register:

nsh> i2c get -a 68 -r 75
READ Bus: 1 Addr: 68 Subaddr: 75 Value: 71

NuttX is wonderful!!! (Kudos to Gregory Nutt)