8394f9b60f
configs/z80sim and xtrs: Serial driver lower halfs ioctl methods should return a negated errno value, not set the errno variable.
drivers/wireless: CC1101 driver not permitted to set errno.
drivers/sensors: LIS331DL driver not permitted to set errno.
drivers/lcd: ILI9341 initialize method not permitted to set errno,
drivers/serial: 16550 UART driver IOCTL method must not set errno; it must return a negated errno value.
ADXL345 ======= The ADXL345 accelerometer can operate in I2C or SPI mode. To operate in I2C mode just connect the CS pin to Vddi/o. In order to operate in SPI mode CS need to use connected to microcontroller, it cannot leave unconnected. In SPI mode it works with clock polarity (CPOL) = 1 and clock phase (CPHA) = 1. MPL115A ======= This driver has support only for MPL115A1 (SPI), but support to MPL115A2 (I2C) can be added easily.