diff options
Diffstat (limited to 'nuttx/include/nuttx/i2c/st_lis331dl.h')
| -rw-r--r-- | nuttx/include/nuttx/i2c/st_lis331dl.h | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/nuttx/include/nuttx/i2c/st_lis331dl.h b/nuttx/include/nuttx/i2c/st_lis331dl.h index f3f137391..31092ae79 100644 --- a/nuttx/include/nuttx/i2c/st_lis331dl.h +++ b/nuttx/include/nuttx/i2c/st_lis331dl.h @@ -81,7 +81,15 @@ extern "C" { #define ST_LIS331DL_HP_FILTER_RESET 0x23 -#define ST_LIS331DL_STATUS_REG 0x27 +#define ST_LIS331DL_STATUS_REG 0x27 /* Status Register */ +#define ST_LIS331DL_SR_ZYXOR 0x80 /* OR'ed X,Y and Z data over-run */ +#define ST_LIS331DL_SR_ZOR 0x40 /* individual data over-run ... */ +#define ST_LIS331DL_SR_YOR 0x20 +#define ST_LIS331DL_SR_XOR 0x10 +#define ST_LIS331DL_SR_ZYXDA 0x08 /* OR'ed X,Y and Z data available */ +#define ST_LIS331DL_SR_ZDA 0x04 /* individual data available ... */ +#define ST_LIS331DL_SR_YDA 0x02 +#define ST_LIS331DL_SR_XDA 0x01 #define ST_LIS331DL_OUT_X 0x29 #define ST_LIS331DL_OUT_Y 0x2B @@ -141,9 +149,9 @@ EXTERN int st_lis331dl_setconversion(struct st_lis331dl_dev_s * dev, bool full, /** Get precision * - * \return Precision of 1 LSB in terms of unit [g] + * \return Precision of 1 LSB in terms of unit [mg] **/ -EXTERN float st_lis331dl_getprecision(struct st_lis331dl_dev_s * dev); +EXTERN int st_lis331dl_getprecision(struct st_lis331dl_dev_s * dev); /** Get sample rate * @@ -154,7 +162,9 @@ EXTERN int st_lis331dl_getsamplerate(struct st_lis331dl_dev_s * dev); /** Get readings, updates internal data structure * * \param dev Device to LIS331DL device structure - * \return Ptr to vector acceleration [x,y,z] on success, or NULL on error with errno set + * \return Ptr to vector acceleration [x,y,z] on success, or NULL on error with errno set. + * If data is not yet ready to be read from the LIS331 then errno is set to EAGAIN otherwise + * errno is set by I2C_TRANSFER(). */ EXTERN const struct st_lis331dl_vector_s * st_lis331dl_getreadings(struct st_lis331dl_dev_s * dev); |