diff --git a/src/mame/drivers/xbox.cpp b/src/mame/drivers/xbox.cpp
index ae35ce3d0bb..02afa799fe5 100644
--- a/src/mame/drivers/xbox.cpp
+++ b/src/mame/drivers/xbox.cpp
@@ -133,33 +133,9 @@ void xbox_state::hack_eeprom()
 	m_maincpu->space(0).write_byte(0x375f0, m_maincpu->space(0).read_byte(0x375f0) & 0xfe); // internal hub not used
 }
 
-/*static const struct {
-    const char *game_name;
-    struct {
-        UINT32 address;
-        UINT8 write_byte;
-    } modify[16];
-} hacks[] = { { "chihiro",{ { 0x6a79f, 0x01 },{ 0x6a7a0, 0x00 },{ 0x6b575, 0x00 },{ 0x6b576, 0x00 },{ 0x6b5af, 0x75 },{ 0x6b78a, 0x75 },{ 0x6b7ca, 0x00 },{ 0x6b7b8, 0x00 },{ 0x8f5b2, 0x75 },{ 0x79a9e, 0x74 },{ 0x79b80, 0x74 },{ 0x79b97, 0x74 },{ 0, 0 } } },
-{ "outr2",{ { 0x12e4cf, 0x01 },{ 0x12e4d0, 0x00 },{ 0x4793e, 0x01 },{ 0x4793f, 0x00 },{ 0x47aa3, 0x01 },{ 0x47aa4, 0x00 },{ 0x14f2b6, 0x84 },{ 0x14f2d1, 0x75 },{ 0x8732f, 0x7d },{ 0x87384, 0x7d },{ 0x87388, 0xeb },{ 0, 0 } } } };*/
-
 void xbox_state::hack_usb()
 {
-	int p;
-
-	if (usbhack_counter == 0)
-		p = 0;
-	else if (usbhack_counter == 1) // after game loaded
-		p = usbhack_index;
-	else
-		p = -1;
-	if (p >= 0) {
-		/*for (int a = 0; a < 16; a++) {
-		    if (hacks[p].modify[a].address == 0)
-		        break;
-		    m_maincpu->space(0).write_byte(hacks[p].modify[a].address, hacks[p].modify[a].write_byte);
-		}*/
-	}
-	usbhack_counter++;
+	// not needed
 }
 
 void xbox_state::machine_start()
@@ -169,11 +145,6 @@ void xbox_state::machine_start()
 	xbox_base_state::machine_start();
 	xbox_devs.ide = machine().device<bus_master_ide_controller_device>("ide");
 	usbhack_index = -1;
-	/*for (int a = 1; a < 2; a++)
-	    if (strcmp(machine().basename(), hacks[a].game_name) == 0) {
-	        usbhack_index = a;
-	        break;
-	    }*/
 	usbhack_counter = 0;
 	usb_device = machine().device<ohci_game_controller_device>("ohci_gamepad");
 	if (usb_device != nullptr) {
diff --git a/src/mame/machine/xbox.cpp b/src/mame/machine/xbox.cpp
index 11714168e6d..a1402b8218b 100644
--- a/src/mame/machine/xbox.cpp
+++ b/src/mame/machine/xbox.cpp
@@ -841,7 +841,7 @@ int xbox_base_state::smbus_cx25871(int command, int rw, int data)
 	return 0;
 }
 
-// let's try to fake the missing eeprom, make sure its ntsc
+// let's try to fake the missing eeprom, make sure its ntsc, otherwise chihiro will show an error
 static int dummyeeprom[256] = {
 	0x39, 0xe3, 0xcc, 0x81, 0xb0, 0xa9, 0x97, 0x09, 0x57, 0xac, 0x57, 0x12, 0xf7, 0xc2, 0xc0, 0x21, 0xce, 0x0d, 0x0a, 0xdb, 0x20, 0x7a, 0xf3, 0xff,
 	0xdf, 0x67, 0xed, 0xf4, 0xf8, 0x95, 0x5c, 0xd0, 0x9b, 0xef, 0x7b, 0x81, 0xda, 0xd5, 0x98, 0xc1, 0xb1, 0xb3, 0x74, 0x18, 0x86, 0x05, 0xe2, 0x7c,
@@ -1194,7 +1194,7 @@ MACHINE_CONFIG_START(xbox_base, xbox_base_state)
 	MCFG_ATA_INTERFACE_IRQ_HANDLER(DEVWRITELINE("pic8259_2", pic8259_device, ir6_w))
 	MCFG_BUS_MASTER_IDE_CONTROLLER_SPACE("maincpu", AS_PROGRAM)
 
-	// next line is temporary
+	// usb controller
 	MCFG_OHCI_USB_CONTROLLER_ADD("ohci_usb")
 	MCFG_OHCI_USB_CONTROLLER_INTERRUPT_HANDLER(WRITELINE(xbox_base_state, xbox_ohci_usb_interrupt_changed))