diff --git a/hw/misc/auxbus.c b/hw/misc/auxbus.c
index 9cc9cf3be3..d96219aef8 100644
--- a/hw/misc/auxbus.c
+++ b/hw/misc/auxbus.c
@@ -106,7 +106,6 @@ AUXReply aux_request(AUXBus *bus, AUXCommand cmd, uint32_t address,
     AUXReply ret = AUX_NACK;
     I2CBus *i2c_bus = aux_get_i2c_bus(bus);
     size_t i;
-    bool is_write = false;
 
     DPRINTF("request at address 0x%" PRIX32 ", command %u, len %u\n", address,
             cmd, len);
@@ -117,11 +116,10 @@ AUXReply aux_request(AUXBus *bus, AUXCommand cmd, uint32_t address,
      */
     case WRITE_AUX:
     case READ_AUX:
-        is_write = cmd == READ_AUX ? false : true;
         for (i = 0; i < len; i++) {
             if (!address_space_rw(&bus->aux_addr_space, address++,
                                   MEMTXATTRS_UNSPECIFIED, data++, 1,
-                                  is_write)) {
+                                  cmd == WRITE_AUX)) {
                 ret = AUX_I2C_ACK;
             } else {
                 ret = AUX_NACK;
@@ -133,19 +131,18 @@ AUXReply aux_request(AUXBus *bus, AUXCommand cmd, uint32_t address,
      * Classic I2C transactions..
      */
     case READ_I2C:
-        is_write = cmd == READ_I2C ? false : true;
         if (i2c_bus_busy(i2c_bus)) {
             i2c_end_transfer(i2c_bus);
         }
 
-        if (i2c_start_transfer(i2c_bus, address, !is_write)) {
+        if (i2c_start_transfer(i2c_bus, address, true)) {
             ret = AUX_I2C_NACK;
             break;
         }
 
         ret = AUX_I2C_ACK;
         while (len > 0) {
-            if (i2c_send_recv(i2c_bus, data++, is_write) < 0) {
+            if (i2c_send_recv(i2c_bus, data++, false) < 0) {
                 ret = AUX_I2C_NACK;
                 break;
             }
@@ -154,19 +151,18 @@ AUXReply aux_request(AUXBus *bus, AUXCommand cmd, uint32_t address,
         i2c_end_transfer(i2c_bus);
         break;
     case WRITE_I2C:
-        is_write = cmd == READ_I2C ? false : true;
         if (i2c_bus_busy(i2c_bus)) {
             i2c_end_transfer(i2c_bus);
         }
 
-        if (i2c_start_transfer(i2c_bus, address, !is_write)) {
+        if (i2c_start_transfer(i2c_bus, address, false)) {
             ret = AUX_I2C_NACK;
             break;
         }
 
         ret = AUX_I2C_ACK;
         while (len > 0) {
-            if (i2c_send_recv(i2c_bus, data++, is_write) < 0) {
+            if (i2c_send_recv(i2c_bus, data++, true) < 0) {
                 ret = AUX_I2C_NACK;
                 break;
             }
@@ -183,13 +179,12 @@ AUXReply aux_request(AUXBus *bus, AUXCommand cmd, uint32_t address,
      *  - We changed the address.
      */
     case WRITE_I2C_MOT:
-        is_write = cmd == READ_I2C_MOT ? false : true;
         ret = AUX_I2C_NACK;
         if (!i2c_bus_busy(i2c_bus)) {
             /*
              * No transactions started..
              */
-            if (i2c_start_transfer(i2c_bus, address, !is_write)) {
+            if (i2c_start_transfer(i2c_bus, address, false)) {
                 break;
             }
         } else if ((address != bus->last_i2c_address) ||
@@ -198,7 +193,7 @@ AUXReply aux_request(AUXBus *bus, AUXCommand cmd, uint32_t address,
              * Transaction started but we need to restart..
              */
             i2c_end_transfer(i2c_bus);
-            if (i2c_start_transfer(i2c_bus, address, !is_write)) {
+            if (i2c_start_transfer(i2c_bus, address, false)) {
                 break;
             }
         }
@@ -206,7 +201,7 @@ AUXReply aux_request(AUXBus *bus, AUXCommand cmd, uint32_t address,
         bus->last_transaction = cmd;
         bus->last_i2c_address = address;
         while (len > 0) {
-            if (i2c_send_recv(i2c_bus, data++, is_write) < 0) {
+            if (i2c_send_recv(i2c_bus, data++, true) < 0) {
                 i2c_end_transfer(i2c_bus);
                 break;
             }
@@ -217,13 +212,12 @@ AUXReply aux_request(AUXBus *bus, AUXCommand cmd, uint32_t address,
         }
         break;
     case READ_I2C_MOT:
-        is_write = cmd == READ_I2C_MOT ? false : true;
         ret = AUX_I2C_NACK;
         if (!i2c_bus_busy(i2c_bus)) {
             /*
              * No transactions started..
              */
-            if (i2c_start_transfer(i2c_bus, address, !is_write)) {
+            if (i2c_start_transfer(i2c_bus, address, true)) {
                 break;
             }
         } else if ((address != bus->last_i2c_address) ||
@@ -232,7 +226,7 @@ AUXReply aux_request(AUXBus *bus, AUXCommand cmd, uint32_t address,
              * Transaction started but we need to restart..
              */
             i2c_end_transfer(i2c_bus);
-            if (i2c_start_transfer(i2c_bus, address, !is_write)) {
+            if (i2c_start_transfer(i2c_bus, address, true)) {
                 break;
             }
         }
@@ -240,7 +234,7 @@ AUXReply aux_request(AUXBus *bus, AUXCommand cmd, uint32_t address,
         bus->last_transaction = cmd;
         bus->last_i2c_address = address;
         while (len > 0) {
-            if (i2c_send_recv(i2c_bus, data++, is_write) < 0) {
+            if (i2c_send_recv(i2c_bus, data++, false) < 0) {
                 i2c_end_transfer(i2c_bus);
                 break;
             }