diff --git a/drivers/at30tse75x/at30tse75x.c b/drivers/at30tse75x/at30tse75x.c
index 4549301b2c..b3fd95f345 100644
--- a/drivers/at30tse75x/at30tse75x.c
+++ b/drivers/at30tse75x/at30tse75x.c
@@ -40,7 +40,7 @@ static int at30tse75x_get_register(const at30tse75x_t *dev, uint8_t reg, uint16_
 {
     i2c_acquire(dev->i2c);
     xtimer_spin(AT30TSE75X_BUS_FREE_TIME_TICKS);
-    if (i2c_read_regs(dev->i2c, dev->addr, reg, data, 2) <= 0) {
+    if (i2c_read_regs(dev->i2c, dev->addr, reg, data, 2, 0) < 0) {
         DEBUG("[at30tse75x] Can't read register 0x%x\n", reg);
         i2c_release(dev->i2c);
         return -1;
@@ -54,7 +54,7 @@ static int at30tse75x_set_register(const at30tse75x_t *dev, uint8_t reg, uint16_
 {
     i2c_acquire(dev->i2c);
     xtimer_spin(AT30TSE75X_BUS_FREE_TIME_TICKS);
-    if (i2c_write_regs(dev->i2c, dev->addr, reg, data, 2) <= 0) {
+    if (i2c_write_regs(dev->i2c, dev->addr, reg, data, 2, 0) < 0) {
         DEBUG("[at30tse75x] Can't write to register 0x%x\n", reg);
         i2c_release(dev->i2c);
         return -1;
@@ -68,7 +68,7 @@ static int at30tse75x_reset(const at30tse75x_t *dev)
 {
     i2c_acquire(dev->i2c);
     xtimer_spin(AT30TSE75X_BUS_FREE_TIME_TICKS);
-    if (i2c_write_byte(dev->i2c, 0x00, AT30TSE75X_CMD__GENERAL_CALL_RESET) != 1) {
+    if (i2c_write_byte(dev->i2c, 0x00, AT30TSE75X_CMD__GENERAL_CALL_RESET, 0) < 0) {
         i2c_release(dev->i2c);
         return -1;
     }
@@ -82,7 +82,7 @@ int at30tse75x_get_config(const at30tse75x_t *dev, uint8_t *data)
 {
     i2c_acquire(dev->i2c);
     xtimer_spin(AT30TSE75X_BUS_FREE_TIME_TICKS);
-    if (i2c_read_reg(dev->i2c, dev->addr, AT30TSE75X_REG__CONFIG, data) <= 0) {
+    if (i2c_read_reg(dev->i2c, dev->addr, AT30TSE75X_REG__CONFIG, data, 0) < 0) {
         DEBUG("[at30tse75x] Can't read CONFIG register\n");
         i2c_release(dev->i2c);
         return -1;
@@ -96,7 +96,7 @@ int at30tse75x_set_config(const at30tse75x_t *dev, uint8_t data)
 {
     i2c_acquire(dev->i2c);
     xtimer_spin(AT30TSE75X_BUS_FREE_TIME_TICKS);
-    if (i2c_write_reg(dev->i2c, dev->addr, AT30TSE75X_REG__CONFIG, data) <= 0) {
+    if (i2c_write_reg(dev->i2c, dev->addr, AT30TSE75X_REG__CONFIG, data, 0) < 0) {
         DEBUG("[at30tse75x] Can't write to CONFIG register\n");
         i2c_release(dev->i2c);
         return -1;
@@ -213,7 +213,7 @@ int at30tse75x_save_config(const at30tse75x_t *dev)
 {
     i2c_acquire(dev->i2c);
     xtimer_spin(AT30TSE75X_BUS_FREE_TIME_TICKS);
-    if(i2c_write_byte(dev->i2c, dev->addr, AT30TSE75X_CMD__SAVE_TO_NVRAM) != 1) {
+    if(i2c_write_byte(dev->i2c, dev->addr, AT30TSE75X_CMD__SAVE_TO_NVRAM, 0) < 0) {
         i2c_release(dev->i2c);
         return -1;
     }
@@ -227,7 +227,7 @@ int at30tse75x_restore_config(const at30tse75x_t *dev)
 {
     i2c_acquire(dev->i2c);
     xtimer_spin(AT30TSE75X_BUS_FREE_TIME_TICKS);
-    if(i2c_write_byte(dev->i2c, dev->addr, AT30TSE75X_CMD__RESTORE_FROM_NVRAM) != 1) {
+    if(i2c_write_byte(dev->i2c, dev->addr, AT30TSE75X_CMD__RESTORE_FROM_NVRAM, 0) < 0) {
         i2c_release(dev->i2c);
         return -1;
     }
@@ -273,7 +273,7 @@ int at30tse75x_get_temperature(const at30tse75x_t *dev, float *temperature)
     return 0;
 }
 
-int at30tse75x_init(at30tse75x_t *dev, i2c_t i2c, i2c_speed_t speed, uint8_t addr)
+int at30tse75x_init(at30tse75x_t *dev, i2c_t i2c, uint8_t addr)
 {
     uint8_t config;
 
@@ -285,14 +285,6 @@ int at30tse75x_init(at30tse75x_t *dev, i2c_t i2c, i2c_speed_t speed, uint8_t add
     }
     dev->addr = addr;
 
-    i2c_acquire(dev->i2c);
-    if(i2c_init_master(dev->i2c, speed) != 0) {
-        DEBUG("[at30tse75x] Can't initialize I2C master\n");
-        i2c_release(dev->i2c);
-        return -1;
-    }
-    i2c_release(dev->i2c);
-
     /* Reset the device */
     if(at30tse75x_reset(dev) != 0) {
         return -1;
diff --git a/drivers/include/at30tse75x.h b/drivers/include/at30tse75x.h
index 16cb770fad..956f343542 100644
--- a/drivers/include/at30tse75x.h
+++ b/drivers/include/at30tse75x.h
@@ -162,7 +162,6 @@ typedef struct {
  *
  * @param[out] dev          device descriptor
  * @param[in] i2c           I2C bus the device is connected to
- * @param[in] speed         I2C speed to use
  * @param[in] addr          I2C address of the device
  *
  * The valid address range is 0x48 - 0x4f depending on the configuration of the
@@ -172,7 +171,7 @@ typedef struct {
  * @return                  -1 on error
  * @return                  -2 on invalid address
  */
-int at30tse75x_init(at30tse75x_t* dev, i2c_t i2c, i2c_speed_t speed, uint8_t addr);
+int at30tse75x_init(at30tse75x_t* dev, i2c_t i2c, uint8_t addr);
 
 /**
  * @brief   Save configuration register to non-volatile backup register
diff --git a/sys/shell/commands/sc_at30tse75x.c b/sys/shell/commands/sc_at30tse75x.c
index 32304f43aa..b1baac262b 100644
--- a/sys/shell/commands/sc_at30tse75x.c
+++ b/sys/shell/commands/sc_at30tse75x.c
@@ -57,7 +57,7 @@ int _at30tse75x_handler(int argc, char **argv)
             }
         }
 
-        error = at30tse75x_init(&dev, i2c_dev, I2C_SPEED_NORMAL, addr);
+        error = at30tse75x_init(&dev, i2c_dev, addr);
         if (error) {
             printf("Error initializing AT30TSE75x sensor on I2C #%u @ 0x%x\n", i2c_dev, addr);
             initialized = false;