diff --git a/docs/en/api-reference/peripherals/usb_device.rst b/docs/en/api-reference/peripherals/usb_device.rst
index a2d628ff90..fed107be45 100644
--- a/docs/en/api-reference/peripherals/usb_device.rst
+++ b/docs/en/api-reference/peripherals/usb_device.rst
@@ -103,7 +103,7 @@ If the CDC option is enabled in Menuconfig, the USB Serial Device could be initi
 
 .. code-block:: c
 
-    tinyusb_config_cdcacm_t amc_cfg = {
+    tinyusb_config_cdcacm_t acm_cfg = {
         .usb_dev = TINYUSB_USBDEV_0,
         .cdc_port = TINYUSB_CDC_ACM_0,
         .rx_unread_buf_sz = 64,
@@ -112,7 +112,7 @@ If the CDC option is enabled in Menuconfig, the USB Serial Device could be initi
         .callback_line_state_changed = NULL,
         .callback_line_coding_changed = NULL
     };
-    tusb_cdc_acm_init(&amc_cfg);
+    tusb_cdc_acm_init(&acm_cfg);
 
 To specify callbacks you can either set the pointer to your :cpp:type:`tusb_cdcacm_callback_t` function in the configuration structure or call :cpp:func:`tinyusb_cdcacm_register_callback` after initialization.
 
diff --git a/examples/peripherals/usb/device/tusb_console/main/tusb_console_main.c b/examples/peripherals/usb/device/tusb_console/main/tusb_console_main.c
index d0f590489a..313a6223a3 100644
--- a/examples/peripherals/usb/device/tusb_console/main/tusb_console_main.c
+++ b/examples/peripherals/usb/device/tusb_console/main/tusb_console_main.c
@@ -31,8 +31,8 @@ void app_main(void)
     tinyusb_config_t tusb_cfg = { 0 }; // the configuration uses default values
     ESP_ERROR_CHECK(tinyusb_driver_install(&tusb_cfg));
 
-    tinyusb_config_cdcacm_t amc_cfg = { 0 }; // the configuration uses default values
-    ESP_ERROR_CHECK(tusb_cdc_acm_init(&amc_cfg));
+    tinyusb_config_cdcacm_t acm_cfg = { 0 }; // the configuration uses default values
+    ESP_ERROR_CHECK(tusb_cdc_acm_init(&acm_cfg));
 
     ESP_LOGI(TAG, "USB initialization DONE");
     while (1) {
diff --git a/examples/peripherals/usb/device/tusb_serial_device/main/tusb_serial_device_main.c b/examples/peripherals/usb/device/tusb_serial_device/main/tusb_serial_device_main.c
index 3794713b3a..68d9f82113 100644
--- a/examples/peripherals/usb/device/tusb_serial_device/main/tusb_serial_device_main.c
+++ b/examples/peripherals/usb/device/tusb_serial_device/main/tusb_serial_device_main.c
@@ -47,7 +47,7 @@ void app_main(void)
     const tinyusb_config_t tusb_cfg = {}; // the configuration using default values
     ESP_ERROR_CHECK(tinyusb_driver_install(&tusb_cfg));
 
-    tinyusb_config_cdcacm_t amc_cfg = {
+    tinyusb_config_cdcacm_t acm_cfg = {
         .usb_dev = TINYUSB_USBDEV_0,
         .cdc_port = TINYUSB_CDC_ACM_0,
         .rx_unread_buf_sz = 64,
@@ -57,7 +57,7 @@ void app_main(void)
         .callback_line_coding_changed = NULL
     };
 
-    ESP_ERROR_CHECK(tusb_cdc_acm_init(&amc_cfg));
+    ESP_ERROR_CHECK(tusb_cdc_acm_init(&acm_cfg));
     /* the second way to register a callback */
     ESP_ERROR_CHECK(tinyusb_cdcacm_register_callback(
                         TINYUSB_CDC_ACM_0,
@@ -65,8 +65,8 @@ void app_main(void)
                         &tinyusb_cdc_line_state_changed_callback));
 
 #if (CONFIG_TINYUSB_CDC_COUNT > 1)
-    amc_cfg.cdc_port = TINYUSB_CDC_ACM_1;
-    ESP_ERROR_CHECK(tusb_cdc_acm_init(&amc_cfg));
+    acm_cfg.cdc_port = TINYUSB_CDC_ACM_1;
+    ESP_ERROR_CHECK(tusb_cdc_acm_init(&acm_cfg));
     ESP_ERROR_CHECK(tinyusb_cdcacm_register_callback(
                         TINYUSB_CDC_ACM_1,
                         CDC_EVENT_LINE_STATE_CHANGED,
diff --git a/examples/peripherals/usb/host/cdc/common/cdc_acm_host/test/usb_device.c b/examples/peripherals/usb/host/cdc/common/cdc_acm_host/test/usb_device.c
index d6605eb875..86c645e2c7 100644
--- a/examples/peripherals/usb/host/cdc/common/cdc_acm_host/test/usb_device.c
+++ b/examples/peripherals/usb/host/cdc/common/cdc_acm_host/test/usb_device.c
@@ -51,7 +51,7 @@ void run_usb_dual_cdc_device(void)
     };
     ESP_ERROR_CHECK(tinyusb_driver_install(&tusb_cfg));
 
-    tinyusb_config_cdcacm_t amc_cfg = {
+    tinyusb_config_cdcacm_t acm_cfg = {
         .usb_dev = TINYUSB_USBDEV_0,
         .cdc_port = TINYUSB_CDC_ACM_0,
         .rx_unread_buf_sz = 64,
@@ -61,10 +61,10 @@ void run_usb_dual_cdc_device(void)
         .callback_line_coding_changed = NULL
     };
 
-    ESP_ERROR_CHECK(tusb_cdc_acm_init(&amc_cfg));
+    ESP_ERROR_CHECK(tusb_cdc_acm_init(&acm_cfg));
 #if (CONFIG_TINYUSB_CDC_COUNT > 1)
-    amc_cfg.cdc_port = TINYUSB_CDC_ACM_1;
-    ESP_ERROR_CHECK(tusb_cdc_acm_init(&amc_cfg));
+    acm_cfg.cdc_port = TINYUSB_CDC_ACM_1;
+    ESP_ERROR_CHECK(tusb_cdc_acm_init(&acm_cfg));
 #endif
 
     printf("USB initialization DONE\n");