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added basic error handling, replaced hardcoded dev_id with define

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This commit is contained in:
byteneumann 2019-07-31 07:20:16 +00:00
parent 9424d919df
commit 4c9406ecfd
1 changed files with 41 additions and 9 deletions
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50
examples/linux_userspace.c
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@ -66,11 +66,16 @@ int8_t stream_sensor_data_forced_mode(struct bme280_dev *dev)
printf("Temperature, Pressure, Humidity\r\n");
/* Continuously stream sensor data */
while (1) {
while (1)
{
rslt = bme280_set_sensor_mode(BME280_FORCED_MODE, dev);
if (rslt != BME280_OK)
break;
/* Wait for the measurement to complete and print data @25Hz */
dev->delay_ms(40);
rslt = bme280_get_sensor_data(BME280_ALL, &comp_data, dev);
if (rslt != BME280_OK)
break;
print_sensor_data(&comp_data);
}
return rslt;
@ -81,20 +86,47 @@ int main(int argc, char* argv[])
struct bme280_dev dev;
int8_t rslt = BME280_OK;
if ((fd = open(argv[1], O_RDWR)) < 0) {
printf("Failed to open the i2c bus %s", argv[1]);
if (argc < 2)
{
printf("Missing argument for I2C device.\n");
exit(1);
}
if (ioctl(fd, I2C_SLAVE, 0x76) < 0) {
printf("Failed to acquire bus access and/or talk to slave.\n");
exit(1);
}
dev.dev_id = BME280_I2C_ADDR_PRIM;
// make sure to select BME280_I2C_ADDR_PRIM
// or BME280_I2C_ADDR_SEC as needed
dev.dev_id =
#if 1
BME280_I2C_ADDR_PRIM
#else
BME280_I2C_ADDR_SEC
#endif
;
dev.intf = BME280_I2C_INTF;
dev.read = user_i2c_read;
dev.write = user_i2c_write;
dev.delay_ms = user_delay_ms;
if ((fd = open(argv[1], O_RDWR)) < 0) {
printf("Failed to open the i2c bus %s\n", argv[1]);
exit(1);
}
if (ioctl(fd, I2C_SLAVE, dev.dev_id) < 0) {
printf("Failed to acquire bus access and/or talk to slave.\n");
exit(1);
}
rslt = bme280_init(&dev);
stream_sensor_data_forced_mode(&dev);
if (rslt != BME280_OK)
{
printf("Failed to initialize the device.\n");
exit(1);
}
rslt = stream_sensor_data_forced_mode(&dev);
if (rslt != BME280_OK)
{
printf("Failed to stream sensor data.\n");
exit(1);
}
return 0;
}