Extern or forward variable declaration at include/linux/iio/triggered_buffer.h, line 8 References: drivers/iio/accel/adxl372.c, line 1096 drivers/iio/accel/bmc150-accel-core.c, line 1480 drivers/iio/accel/kxcjk-1013.c, line 1067 drivers/iio/accel/kxsd9.c, line 259 drivers/iio/accel/st_accel_buffer.c, line 63 drivers/iio/accel/stk8312.c, line 493 drivers/iio/accel/stk8ba50.c, line 377 drivers/iio/adc/ad7266.c, line 75 drivers/iio/adc/ad7606.c, line 516 drivers/iio/adc/ad7766.c, line 179 drivers/iio/adc/ad7768-1.c, line 512 drivers/iio/adc/ad7887.c, line 137 drivers/iio/adc/ad_sigma_delta.c, line 435 drivers/iio/adc/at91-sama5d2_adc.c, line 991 drivers/iio/adc/dln2-adc.c, line 586 drivers/iio/adc/mxs-lradc-adc.c, line 569 drivers/iio/adc/stm32-adc.c, line 1606 drivers/iio/adc/stm32-dfsdm-adc.c, line 1061 drivers/iio/adc/ti-adc084s021.c, line 193 drivers/iio/adc/ti-ads1015.c, line 799 drivers/iio/adc/vf610_adc.c, line 762 drivers/iio/adc/xilinx-xadc-core.c, line 874 drivers/iio/buffer/industrialio-triggered-buffer.c, line 39 drivers/iio/buffer/industrialio-triggered-buffer.c, line 99 drivers/iio/chemical/atlas-sensor.c, line 442 drivers/iio/gyro/bmg160_core.c, line 1052 drivers/iio/gyro/mpu3050-core.c, line 663 drivers/iio/gyro/st_gyro_buffer.c, line 62 drivers/iio/humidity/hdc100x.c, line 308 drivers/iio/humidity/hts221_buffer.c, line 154 drivers/iio/light/gp2ap020a00f.c, line 1465 drivers/iio/light/isl29125.c, line 235 drivers/iio/light/rpr0521.c, line 571 drivers/iio/light/si1145.c, line 1175 drivers/iio/light/st_uvis25_core.c, line 228 drivers/iio/light/tcs3414.c, line 261 drivers/iio/light/vcnl4000.c, line 985 drivers/iio/light/vcnl4035.c, line 362 drivers/iio/magnetometer/bmc150_magn.c, line 837 drivers/iio/magnetometer/rm3100-core.c, line 464 drivers/iio/magnetometer/st_magn_buffer.c, line 42 drivers/iio/potentiostat/lmp91000.c, line 293 drivers/iio/pressure/st_pressure_buffer.c, line 42 drivers/iio/pressure/zpa2326.c, line 1283 drivers/iio/proximity/sx9310.c, line 738 drivers/iio/proximity/sx9500.c, line 726 include/linux/iio/triggered_buffer.h, line 8 include/linux/iio/triggered_buffer.h, line 13 include/linux/iio/triggered_buffer.h, line 20