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clean up warning in lpcxpresso
remove -Wpacked -Wpadded in gcc

hathach 12 лет назад
Родитель
Сommit
5e2ed2534e

+ 13 - 6
demos/host/host_os_none/.cproject

@@ -1567,8 +1567,8 @@
 			<storageModule buildSystemId="org.eclipse.cdt.managedbuilder.core.configurationDataProvider" id="com.crt.advproject.config.exe.debug.1239969983.636406670" moduleId="org.eclipse.cdt.core.settings" name="Board EA4357">
 				<macros>
 					<stringMacro name="CFLAGS_OFF" type="VALUE_TEXT" value=""/>
-					<stringMacro name="CFLAGS" type="VALUE_TEXT" value="${CFLAGS_OFF}"/>
-					<stringMacro name="CFLAGS_ON" type="VALUE_TEXT" value="-pedantic -Wextra -Wswitch-default -Wunsafe-loop-optimizations -Wcast-align -Wlogical-op -Wpacked-bitfield-compat -Wpadded -Wnested-externs -Wredundant-decls -Winline -Wpacked"/>
+					<stringMacro name="CFLAGS" type="VALUE_TEXT" value="${CFLAGS_ON}"/>
+					<stringMacro name="CFLAGS_ON" type="VALUE_TEXT" value="-Wextra -Wswitch-default -Wunsafe-loop-optimizations -Wcast-align -Wlogical-op -Wpacked-bitfield-compat -Wnested-externs -Wredundant-decls -Winline"/>
 				</macros>
 				<externalSettings/>
 				<extensions>
@@ -9369,8 +9369,8 @@
 	<storageModule moduleId="com.crt.config">
 		<projectStorage>&lt;?xml version="1.0" encoding="UTF-8"?&gt;&#13;
 &lt;TargetConfig&gt;&#13;
-&lt;Properties property_0="" property_3="NXP" property_4="LPC4330" property_count="5" version="1"/&gt;&#13;
-&lt;infoList vendor="NXP"&gt;&lt;info chip="LPC4330" match_id="0x0" name="LPC4330" resetscript="LPC18LPC43ExternalFLASHBootResetscript.scp" stub="crt_emu_lpc18_43_nxp"&gt;&lt;chip&gt;&lt;name&gt;LPC4330&lt;/name&gt;&#13;
+&lt;Properties property_0="" property_2="LPC18x7_43x7_2x512_BootA.cfx" property_3="NXP" property_4="LPC4357" property_count="5" version="1"/&gt;&#13;
+&lt;infoList vendor="NXP"&gt;&lt;info chip="LPC4357" flash_driver="LPC18x7_43x7_2x512_BootA.cfx" match_id="0x0" name="LPC4357" resetscript="LPC18LPC43InternalFLASHBootResetscript.scp" stub="crt_emu_lpc18_43_nxp"&gt;&lt;chip&gt;&lt;name&gt;LPC4357&lt;/name&gt;&#13;
 &lt;family&gt;LPC43xx&lt;/family&gt;&#13;
 &lt;vendor&gt;NXP (formerly Philips)&lt;/vendor&gt;&#13;
 &lt;reset board="None" core="Real" sys="Real"/&gt;&#13;
@@ -9378,11 +9378,17 @@
 &lt;memory can_program="true" id="Flash" is_ro="true" type="Flash"/&gt;&#13;
 &lt;memory id="RAM" type="RAM"/&gt;&#13;
 &lt;memory id="Periph" is_volatile="true" type="Peripheral"/&gt;&#13;
-&lt;memoryInstance derived_from="RAM" id="RamLoc128" location="0x10000000" size="0x20000"/&gt;&#13;
-&lt;memoryInstance derived_from="RAM" id="RamLoc72" location="0x10080000" size="0x12000"/&gt;&#13;
+&lt;memoryInstance derived_from="Flash" id="MFlashA512" location="0x1a000000" size="0x80000"/&gt;&#13;
+&lt;memoryInstance derived_from="Flash" id="MFlashB512" location="0x1b000000" size="0x80000"/&gt;&#13;
+&lt;memoryInstance derived_from="RAM" id="RamLoc32" location="0x10000000" size="0x8000"/&gt;&#13;
+&lt;memoryInstance derived_from="RAM" id="RamLoc40" location="0x10080000" size="0xa000"/&gt;&#13;
 &lt;memoryInstance derived_from="RAM" id="RamAHB32" location="0x20000000" size="0x8000"/&gt;&#13;
 &lt;memoryInstance derived_from="RAM" id="RamAHB16" location="0x20008000" size="0x4000"/&gt;&#13;
 &lt;memoryInstance derived_from="RAM" id="RamAHB_ETB16" location="0x2000c000" size="0x4000"/&gt;&#13;
+&lt;prog_flash blocksz="0x2000" location="0x1a000000" maxprgbuff="0x400" progwithcode="TRUE" size="0x10000"/&gt;&#13;
+&lt;prog_flash blocksz="0x10000" location="0x1a010000" maxprgbuff="0x400" progwithcode="TRUE" size="0x70000"/&gt;&#13;
+&lt;prog_flash blocksz="0x2000" location="0x1b000000" maxprgbuff="0x400" progwithcode="TRUE" size="0x10000"/&gt;&#13;
+&lt;prog_flash blocksz="0x10000" location="0x1b010000" maxprgbuff="0x400" progwithcode="TRUE" size="0x70000"/&gt;&#13;
 &lt;peripheralInstance derived_from="V7M_MPU" id="MPU" location="0xe000ed90"/&gt;&#13;
 &lt;peripheralInstance derived_from="V7M_NVIC" id="NVIC" location="0xe000e000"/&gt;&#13;
 &lt;peripheralInstance derived_from="V7M_DCR" id="DCR" location="0xe000edf0"/&gt;&#13;
@@ -9394,6 +9400,7 @@
 &lt;peripheralInstance derived_from="EMC" id="EMC" location="0x40005000"/&gt;&#13;
 &lt;peripheralInstance derived_from="USB0" id="USB0" location="0x40006000"/&gt;&#13;
 &lt;peripheralInstance derived_from="USB1" id="USB1" location="0x40007000"/&gt;&#13;
+&lt;peripheralInstance derived_from="LCD" id="LCD" location="0x40008000"/&gt;&#13;
 &lt;peripheralInstance derived_from="EEPROM" id="EEPROM" location="0x4000e000"/&gt;&#13;
 &lt;peripheralInstance derived_from="ETHERNET" id="ETHERNET" location="0x40010000"/&gt;&#13;
 &lt;peripheralInstance derived_from="ATIMER" id="ATIMER" location="0x40040000"/&gt;&#13;

+ 6 - 2
demos/host/src/cdc_serial_app.c

@@ -61,7 +61,7 @@ static uint8_t received_bytes; // set by transfer complete callback
 //--------------------------------------------------------------------+
 void tusbh_cdc_mounted_cb(uint8_t dev_addr)
 { // application set-up
-  printf("\na CDC device is mounted\n");
+  printf("\na CDC device  (address %d) is mounted\n", dev_addr);
 
   memclr_(serial_in_buffer, sizeof(serial_in_buffer));
   memclr_(serial_out_buffer, sizeof(serial_out_buffer));
@@ -73,11 +73,13 @@ void tusbh_cdc_mounted_cb(uint8_t dev_addr)
 
 void tusbh_cdc_unmounted_cb(uint8_t dev_addr)
 { // application tear-down
-  printf("\na CDC device is unmounted\n");
+  printf("\na CDC device (address %d) is unmounted \n", dev_addr);
 }
 
 void tusbh_cdc_xfer_isr(uint8_t dev_addr, tusb_event_t event, cdc_pipeid_t pipe_id, uint32_t xferred_bytes)
 {
+  (void) dev_addr; // compiler warnings
+
   switch ( pipe_id )
   {
     case CDC_PIPE_DATA_IN:
@@ -119,6 +121,8 @@ void cdc_serial_app_init(void)
 //------------- main task -------------//
 OSAL_TASK_FUNCTION( cdc_serial_app_task ) (void* p_task_para)
 {
+  (void) p_task_para;
+
   OSAL_TASK_LOOP_BEGIN
 
   //------------- send characters got from uart terminal to the first CDC device -------------//

+ 9 - 5
demos/host/src/cli.c

@@ -206,11 +206,11 @@ void cli_poll(char ch)
     //------------- Separate Command & Parameter -------------//
     putchar('\n');
     char* p_space = strchr(cli_buffer, ' ');
-    uint32_t command_len = (p_space == NULL) ? strlen(cli_buffer) : (p_space - cli_buffer);
+    uint32_t command_len = (p_space == NULL) ? strlen(cli_buffer) : (uint32_t) (p_space - cli_buffer);
     char* p_para = (p_space == NULL) ? (cli_buffer+command_len) : (p_space+1); // point to NULL-character or after space
 
     //------------- Find entered command in lookup table & execute it -------------//
-    uint32_t cmd_id;
+    uint8_t cmd_id;
     for(cmd_id = CLI_CMDTYPE_COUNT - 1; cmd_id > CLI_CMDTYPE_unknown; cmd_id--)
     {
       if( 0 == strncmp(cli_buffer, cli_string_tbl[cmd_id], command_len) ) break;
@@ -230,8 +230,9 @@ void cli_poll(char ch)
 //--------------------------------------------------------------------+
 // UNKNOWN Command
 //--------------------------------------------------------------------+
-cli_error_t cli_cmd_unknown(char * para)
+cli_error_t cli_cmd_unknown(char * p_para)
 {
+  (void) p_para;
   puts("unknown command, please type \"help\" for list of supported commands");
   return CLI_ERROR_NONE;
 }
@@ -239,10 +240,12 @@ cli_error_t cli_cmd_unknown(char * para)
 //--------------------------------------------------------------------+
 // HELP command
 //--------------------------------------------------------------------+
-cli_error_t cli_cmd_help(char * para)
+cli_error_t cli_cmd_help(char * p_para)
 {
+  (void) p_para;
+
   puts("current supported commands are:");
-  for(uint32_t cmd_id = CLI_CMDTYPE_help+1; cmd_id < CLI_CMDTYPE_COUNT; cmd_id++)
+  for(uint8_t cmd_id = CLI_CMDTYPE_help+1; cmd_id < CLI_CMDTYPE_COUNT; cmd_id++)
   {
     printf("%s\t%s\n", cli_string_tbl[cmd_id], cli_description_tbl[cmd_id]);
   }
@@ -255,6 +258,7 @@ cli_error_t cli_cmd_help(char * para)
 //--------------------------------------------------------------------+
 cli_error_t cli_cmd_clear(char* p_para)
 {
+  (void) p_para;
   printf(ANSI_ERASE_SCREEN(2) ANSI_CURSOR_POSITION(1,1) );
   return CLI_ERROR_NONE;
 }

+ 4 - 3
demos/host/src/keyboard_app.c

@@ -67,8 +67,7 @@ static inline void process_kbd_report(hid_keyboard_report_t const * report);
 void tusbh_hid_keyboard_mounted_cb(uint8_t dev_addr)
 {
   // application set-up
-
-  puts("\na Keyboard device is mounted");
+  printf("\na Keyboard device (address %d) is mounted\n", dev_addr);
 
   osal_queue_flush(queue_kbd_hdl);
   tusbh_hid_keyboard_get_report(dev_addr, (uint8_t*) &usb_keyboard_report); // first report
@@ -77,7 +76,7 @@ void tusbh_hid_keyboard_mounted_cb(uint8_t dev_addr)
 void tusbh_hid_keyboard_unmounted_cb(uint8_t dev_addr)
 {
   // application tear-down
-  puts("\na Keyboard device is unmounted");
+  printf("\na Keyboard device (address %d) is unmounted\n", dev_addr);
 }
 
 void tusbh_hid_keyboard_isr(uint8_t dev_addr, tusb_event_t event)
@@ -115,6 +114,8 @@ void keyboard_app_init(void)
 //------------- main task -------------//
 OSAL_TASK_FUNCTION( keyboard_app_task ) (void* p_task_para)
 {
+  (void) p_task_para;
+
   hid_keyboard_report_t kbd_report;
   tusb_error_t error;
 

+ 4 - 3
demos/host/src/mouse_app.c

@@ -66,8 +66,7 @@ static inline void process_mouse_report(hid_mouse_report_t const * p_report);
 void tusbh_hid_mouse_mounted_cb(uint8_t dev_addr)
 {
   // application set-up
-
-  puts("\na Mouse device is mounted");
+  printf("\na Mouse device (address %d) is mounted\n", dev_addr);
 
   osal_queue_flush(queue_mouse_hdl);
   (void) tusbh_hid_mouse_get_report(dev_addr, (uint8_t*) &usb_mouse_report); // first report
@@ -76,7 +75,7 @@ void tusbh_hid_mouse_mounted_cb(uint8_t dev_addr)
 void tusbh_hid_mouse_unmounted_cb(uint8_t dev_addr)
 {
   // application tear-down
-  puts("\na Mouse device is unmounted\n");
+  printf("\na Mouse device (address %d) is unmounted\n", dev_addr);
 }
 
 void tusbh_hid_mouse_isr(uint8_t dev_addr, tusb_event_t event)
@@ -116,6 +115,8 @@ void mouse_app_init(void)
 //------------- main task -------------//
 OSAL_TASK_FUNCTION( mouse_app_task ) (void* p_task_para)
 {
+  (void) p_task_para;
+
   tusb_error_t error;
   hid_mouse_report_t mouse_report;
 

+ 5 - 1
demos/host/src/msc_app.c

@@ -132,7 +132,9 @@ void tusbh_msc_unmounted_cb(uint8_t dev_addr)
 
 void tusbh_msc_isr(uint8_t dev_addr, tusb_event_t event, uint32_t xferred_bytes)
 {
-
+  (void) dev_addr;
+  (void) event;
+  (void) xferred_bytes;
 }
 
 //--------------------------------------------------------------------+
@@ -147,6 +149,8 @@ void msc_app_init(void)
 //------------- main task -------------//
 OSAL_TASK_FUNCTION( msc_app_task ) (void* p_task_para)
 {
+  (void) p_task_para;
+
   OSAL_TASK_LOOP_BEGIN
 
   bool is_any_disk_mounted; 

+ 2 - 1
tinyusb/class/custom_class.h

@@ -66,7 +66,8 @@ STATIC_ INLINE_ bool tusbh_custom_is_mounted(uint8_t dev_addr, uint16_t vendor_i
 {
   (void) vendor_id; // TODO check this later
   (void) product_id;
-  return (tusbh_device_get_mounted_class_flag(dev_addr) & BIT_(TUSB_CLASS_MAPPED_INDEX_END-1) ) != 0;
+//  return (tusbh_device_get_mounted_class_flag(dev_addr) & BIT_(TUSB_CLASS_MAPPED_INDEX_END-1) ) != 0;
+  return false;
 }
 
 tusb_error_t tusbh_custom_read(uint8_t dev_addr, uint16_t vendor_id, uint16_t product_id, void * p_buffer, uint16_t length);

+ 6 - 4
tinyusb/class/hid_host.c

@@ -66,8 +66,8 @@ static inline tusb_error_t hidh_interface_open(uint8_t dev_addr, uint8_t interfa
   return TUSB_ERROR_NONE;
 }
 
-static inline void hidh_interface_close(uint8_t dev_addr, hidh_interface_info_t *p_hid) ATTR_ALWAYS_INLINE;
-static inline void hidh_interface_close(uint8_t dev_addr, hidh_interface_info_t *p_hid)
+static inline void hidh_interface_close(hidh_interface_info_t *p_hid) ATTR_ALWAYS_INLINE;
+static inline void hidh_interface_close(hidh_interface_info_t *p_hid)
 {
   (void) hcd_pipe_close(p_hid->pipe_hdl);
   memclr_(p_hid, sizeof(hidh_interface_info_t));
@@ -256,6 +256,8 @@ tusb_error_t hidh_open_subtask(uint8_t dev_addr, tusb_descriptor_interface_t con
 
 void hidh_isr(pipe_handle_t pipe_hdl, tusb_event_t event, uint32_t xferred_bytes)
 {
+  (void) xferred_bytes; // TODO may need to use this para later
+
 #if TUSB_CFG_HOST_HID_KEYBOARD
   if ( pipehandle_is_equal(pipe_hdl, keyboardh_data[pipe_hdl.dev_addr-1].pipe_hdl) )
   {
@@ -282,7 +284,7 @@ void hidh_close(uint8_t dev_addr)
 #if TUSB_CFG_HOST_HID_KEYBOARD
   if ( pipehandle_is_valid( keyboardh_data[dev_addr-1].pipe_hdl ) )
   {
-    hidh_interface_close(dev_addr, &keyboardh_data[dev_addr-1]);
+    hidh_interface_close(&keyboardh_data[dev_addr-1]);
     tusbh_hid_keyboard_unmounted_cb(dev_addr);
   }
 #endif
@@ -290,7 +292,7 @@ void hidh_close(uint8_t dev_addr)
 #if TUSB_CFG_HOST_HID_MOUSE
   if( pipehandle_is_valid( mouseh_data[dev_addr-1].pipe_hdl ) )
   {
-    hidh_interface_close(dev_addr, &mouseh_data[dev_addr-1]);
+    hidh_interface_close(&mouseh_data[dev_addr-1]);
     tusbh_hid_mouse_unmounted_cb( dev_addr );
   }
 #endif

+ 3 - 4
tinyusb/common/tusb_types.h

@@ -135,8 +135,7 @@ typedef enum {
   TUSB_CLASS_PERSONAL_HEALTHCARE  = 15   , ///< 15
   TUSB_CLASS_AUDIO_VIDEO          = 16   , ///< 16
 
-  TUSB_CLASS_MAPPED_INDEX_START   = 17   , // TODO compact & minimize this number
-  TUSB_CLASS_MAPPED_INDEX_END     = TUSB_CLASS_MAPPED_INDEX_START + 5,
+  TUSB_CLASS_MAPPED_INDEX_START   = 17   , // TODO Map DIAGNOSTIC, WIRELESS_CONTROLLER, MISC, VENDOR_SPECIFIC to this to minimize the array
 
   TUSB_CLASS_DIAGNOSTIC           = 0xDC ,
   TUSB_CLASS_WIRELESS_CONTROLLER  = 0xE0 ,
@@ -153,7 +152,7 @@ typedef enum {
   MISC_PROTOCOL_IAD = 1
 }misc_protocol_type_t;
 
-typedef enum tusb_std_class_flag_{
+typedef enum {
   TUSB_CLASS_FLAG_AUDIO                = BIT_(TUSB_CLASS_AUDIO)               , ///< 1
   TUSB_CLASS_FLAG_CDC                  = BIT_(TUSB_CLASS_CDC)                 , ///< 2
   TUSB_CLASS_FLAG_HID                  = BIT_(TUSB_CLASS_HID)                 , ///< 3
@@ -219,7 +218,7 @@ enum {
 static inline uint8_t std_class_code_to_index(uint8_t std_class_code) ATTR_CONST ATTR_ALWAYS_INLINE;
 static inline uint8_t std_class_code_to_index(uint8_t std_class_code)
 {
-  return  (std_class_code <= TUSB_CLASS_AUDIO_VIDEO          ) ? std_class_code                   :
+  return  (std_class_code <= TUSB_CLASS_AUDIO_VIDEO          ) ? std_class_code                    :
           (std_class_code == TUSB_CLASS_DIAGNOSTIC           ) ? TUSB_CLASS_MAPPED_INDEX_START     :
           (std_class_code == TUSB_CLASS_WIRELESS_CONTROLLER  ) ? TUSB_CLASS_MAPPED_INDEX_START + 1 :
           (std_class_code == TUSB_CLASS_MISC                 ) ? TUSB_CLASS_MAPPED_INDEX_START + 2 :

+ 1 - 1
tinyusb/host/hub.c

@@ -59,7 +59,7 @@ typedef struct {
 }usbh_hub_t;
 
 TUSB_CFG_ATTR_USBRAM usbh_hub_t hub_data[TUSB_CFG_HOST_DEVICE_MAX];
-TUSB_CFG_ATTR_USBRAM uint8_t hub_enum_buffer[sizeof(descriptor_hub_desc_t)];
+ATTR_ALIGNED(4) TUSB_CFG_ATTR_USBRAM STATIC_VAR uint8_t hub_enum_buffer[sizeof(descriptor_hub_desc_t)];
 
 //OSAL_SEM_DEF(hub_enum_semaphore);
 //static osal_semaphore_handle_t hub_enum_sem_hdl;

+ 22 - 15
tinyusb/host/usbh.c

@@ -55,52 +55,56 @@
 #define ENUM_QUEUE_DEPTH  5
 
 // TODO fix/compress number of class driver
-static host_class_driver_t const usbh_class_drivers[TUSB_CLASS_MAPPED_INDEX_END] =
+static host_class_driver_t const usbh_class_drivers[] =
 {
-#if HOST_CLASS_HID
+  #if HOST_CLASS_HID
     [TUSB_CLASS_HID] = {
         .init         = hidh_init,
         .open_subtask = hidh_open_subtask,
         .isr          = hidh_isr,
         .close        = hidh_close
     },
-#endif
+  #endif
 
-#if TUSB_CFG_HOST_CDC
+  #if TUSB_CFG_HOST_CDC
     [TUSB_CLASS_CDC] = {
         .init         = cdch_init,
         .open_subtask = cdch_open_subtask,
         .isr          = cdch_isr,
         .close        = cdch_close
     },
-#endif
+  #endif
 
-#if TUSB_CFG_HOST_MSC
+  #if TUSB_CFG_HOST_MSC
     [TUSB_CLASS_MSC] = {
         .init         = msch_init,
         .open_subtask = msch_open_subtask,
         .isr          = msch_isr,
         .close        = msch_close
     },
-#endif
+  #endif
 
-#if TUSB_CFG_HOST_HUB
+  #if TUSB_CFG_HOST_HUB
     [TUSB_CLASS_HUB] = {
         .init         = hub_init,
         .open_subtask = hub_open_subtask,
         .isr          = hub_isr,
         .close        = hub_close
     },
-#endif
+  #endif
 
-#if TUSB_CFG_HOST_CUSTOM_CLASS
+  #if TUSB_CFG_HOST_CUSTOM_CLASS
     [TUSB_CLASS_MAPPED_INDEX_END-1] = {
         .init         = cush_init,
         .open_subtask = cush_open_subtask,
         .isr          = cush_isr,
         .close        = cush_close
     }
-#endif
+  #endif
+};
+
+enum {
+  USBH_CLASS_DRIVER_COUNT = sizeof(usbh_class_drivers) / sizeof(host_class_driver_t)
 };
 
 //--------------------------------------------------------------------+
@@ -162,7 +166,7 @@ tusb_error_t usbh_init(void)
   }
 
   //------------- class init -------------//
-  for (uint8_t class_index = 1; class_index < TUSB_CLASS_MAPPED_INDEX_END; class_index++)
+  for (uint8_t class_index = 1; class_index < USBH_CLASS_DRIVER_COUNT; class_index++)
   {
     if (usbh_class_drivers[class_index].init)
     {
@@ -296,7 +300,7 @@ static void usbh_device_unplugged(uint8_t hostid, uint8_t hub_addr, uint8_t hub_
         usbh_devices[dev_addr].state    != TUSB_DEVICE_STATE_UNPLUG)
     {
       // TODO Hub multiple level
-      for (uint8_t class_index = 1; class_index < TUSB_CLASS_MAPPED_INDEX_END; class_index++)
+      for (uint8_t class_index = 1; class_index < USBH_CLASS_DRIVER_COUNT; class_index++)
       {
         if ((usbh_devices[dev_addr].flag_supported_class & BIT_(class_index)) &&
             usbh_class_drivers[class_index].close)
@@ -412,9 +416,12 @@ tusb_error_t enumeration_body_subtask(void)
     // Acknowledge Port Connection Change
     OSAL_SUBTASK_INVOKED_AND_WAIT( hub_port_clear_feature_subtask(usbh_devices[0].hub_addr, usbh_devices[0].hub_port, HUB_FEATURE_PORT_CONNECTION_CHANGE), error );
 
-    if ( ! ((hub_port_status_response_t *) enum_data_buffer)->status_change.connect_status )   SUBTASK_EXIT(TUSB_ERROR_NONE); // only handle connection change
+    hub_port_status_response_t * p_port_status;
+    p_port_status = ((hub_port_status_response_t *) enum_data_buffer);
+
+    if ( ! p_port_status->status_change.connect_status )   SUBTASK_EXIT(TUSB_ERROR_NONE); // only handle connection change
 
-    if ( ! ((hub_port_status_response_t *) enum_data_buffer)->status_current.connect_status )
+    if ( ! p_port_status->status_current.connect_status )
     { // Disconnection event
       usbh_device_unplugged(usbh_devices[0].core_id, usbh_devices[0].hub_addr, usbh_devices[0].hub_port);
 

+ 2 - 1
vendor/fatfs/diskio.c

@@ -126,8 +126,9 @@ DRESULT disk_write (BYTE pdrv, const BYTE* buff, DWORD sector, BYTE count)
 /* [I/O] Parameter and data buffer */
 DRESULT disk_ioctl (BYTE pdrv, BYTE cmd, void* buff)
 {
-  if (cmd != CTRL_SYNC) return RES_ERROR;
+  (void) buff; (void) pdrv; // compiler warnings
 
+  if (cmd != CTRL_SYNC) return RES_ERROR;
   return RES_OK;
 }