diff --git a/cpu/cc253x/usb/common/cdc-acm/cdc-acm.c b/cpu/cc253x/usb/common/cdc-acm/cdc-acm.c
index 30f821e1e..8c2808a13 100644
--- a/cpu/cc253x/usb/common/cdc-acm/cdc-acm.c
+++ b/cpu/cc253x/usb/common/cdc-acm/cdc-acm.c
@@ -13,10 +13,10 @@
 
 static uint8_t usb_ctrl_data_buffer[32];
 
-static struct usb_cdc_line_coding usb_line_coding = {9600, 0x00, 0x00, 0x08}; // 9600 baud, 8N1
+static struct usb_cdc_line_coding usb_line_coding = { 9600, 0x00, 0x00, 0x08 }; // 9600 baud, 8N1
 static uint8_t line_state;
 static uint8_t events;
-static struct process * cdc_event_process = NULL;
+static struct process *cdc_event_process = NULL;
 
 static void
 notify_user(uint8_t e)
@@ -36,18 +36,20 @@ encapsulated_command(uint8_t *data, unsigned int length)
 static void
 set_line_encoding(uint8_t *data, unsigned int length)
 {
-  if (length == 7) {
+  if(length == 7) {
 #ifdef DEBUG
-    static const char parity_char[] = {'N', 'O', 'E', 'M', 'S'};
-    static const char *stop_bits_str[] = {"1","1.5","2"};
+    static const char parity_char[] = { 'N', 'O', 'E', 'M', 'S' };
+    static const char *stop_bits_str[] = { "1", "1.5", "2" };
     const struct usb_cdc_line_coding *coding =
       (const struct usb_cdc_line_coding *)usb_ctrl_data_buffer;
     char parity = ((coding->bParityType > 4)
-		   ? '?' : parity_char[coding->bParityType]);
+                   ? '?' : parity_char[coding->bParityType]);
+
     const char *stop_bits = ((coding->bCharFormat > 2)
-			     ? "?" : stop_bits_str[coding->bCharFormat]);
+                             ? "?" : stop_bits_str[coding->bCharFormat]);
+
     PRINTF("Got CDC line coding: %ld/%d/%c/%s\n",
-	       coding->dwDTERate, coding->bDataBits, parity, stop_bits);
+           coding->dwDTERate, coding->bDataBits, parity, stop_bits);
 #endif
     memcpy(&usb_line_coding, data, sizeof(usb_line_coding));
     notify_user(USB_CDC_ACM_LINE_CODING);
@@ -60,12 +62,14 @@ set_line_encoding(uint8_t *data, unsigned int length)
 static unsigned int
 handle_cdc_acm_requests()
 {
-  PRINTF("CDC request %02x %02x\n", usb_setup_buffer.bmRequestType, usb_setup_buffer.bRequest);
-  switch(usb_setup_buffer.bmRequestType) {
+  PRINTF("CDC request %02x %02x\n", usb_setup_buffer.bmRequestType,
+         usb_setup_buffer.bRequest);
+  switch (usb_setup_buffer.bmRequestType) {
   case 0x21: /* CDC interface OUT requests */
     /* Check if it's the right interface */
-    if (usb_setup_buffer.wIndex != 0) return 0;
-    switch(usb_setup_buffer.bRequest) {
+    if(usb_setup_buffer.wIndex != 0)
+      return 0;
+    switch (usb_setup_buffer.bRequest) {
     case SET_CONTROL_LINE_STATE:
       line_state = usb_setup_buffer.wValue;
       notify_user(USB_CDC_ACM_LINE_STATE);
@@ -74,11 +78,10 @@ handle_cdc_acm_requests()
 
     case SEND_ENCAPSULATED_COMMAND:
       {
-	unsigned int len = usb_setup_buffer.wLength;
-	if (len > sizeof(usb_ctrl_data_buffer))
-	  len = sizeof(usb_ctrl_data_buffer);
-	usb_get_ctrl_data(usb_ctrl_data_buffer, len,
-			  encapsulated_command);
+        unsigned int len = usb_setup_buffer.wLength;
+        if(len > sizeof(usb_ctrl_data_buffer))
+          len = sizeof(usb_ctrl_data_buffer);
+        usb_get_ctrl_data(usb_ctrl_data_buffer, len, encapsulated_command);
       }
 
       return 1;
@@ -86,42 +89,40 @@ handle_cdc_acm_requests()
 
     case SET_LINE_CODING:
       {
-	unsigned int len = usb_setup_buffer.wLength;
-	if (len > sizeof(usb_ctrl_data_buffer))
-	  len = sizeof(usb_ctrl_data_buffer);
-	usb_get_ctrl_data(usb_ctrl_data_buffer, len,
-			  set_line_encoding);
+        unsigned int len = usb_setup_buffer.wLength;
+        if(len > sizeof(usb_ctrl_data_buffer))
+          len = sizeof(usb_ctrl_data_buffer);
+        usb_get_ctrl_data(usb_ctrl_data_buffer, len, set_line_encoding);
       }
       return 1;
     }
     break;
-  case 0xa1: /* CDC interface IN requests */
-    if (usb_setup_buffer.wIndex != 0) return 0;
-    switch(usb_setup_buffer.bRequest) {
+  case 0xa1:                   /* CDC interface IN requests */
+    if(usb_setup_buffer.wIndex != 0)
+      return 0;
+    switch (usb_setup_buffer.bRequest) {
     case GET_ENCAPSULATED_RESPONSE:
       PRINTF("CDC response");
       usb_send_ctrl_status();
       return 1;
     case GET_LINE_CODING:
-      usb_send_ctrl_response((uint8_t *) &usb_line_coding, 7);
+      usb_send_ctrl_response((uint8_t *) & usb_line_coding, 7);
       return 1;
     }
   }
   return 0;
 }
 
-static const struct USBRequestHandler cdc_acm_request_handler =
-  {
-    0x21, 0x7f,
-    0x00, 0x00,
-    handle_cdc_acm_requests
-  };
+static const struct USBRequestHandler cdc_acm_request_handler = {
+  0x21, 0x7f,
+  0x00, 0x00,
+  handle_cdc_acm_requests
+};
 
-static struct USBRequestHandlerHook cdc_acm_request_hook =
-  {
-    NULL,
-    &cdc_acm_request_handler
-  };
+static struct USBRequestHandlerHook cdc_acm_request_hook = {
+  NULL,
+  &cdc_acm_request_handler
+};
 
 void
 usb_cdc_acm_setup()
@@ -154,4 +155,3 @@ usb_cdc_acm_set_event_process(struct process *p)
 {
   cdc_event_process = p;
 }
-
diff --git a/cpu/cc253x/usb/common/cdc-acm/cdc-acm.h b/cpu/cc253x/usb/common/cdc-acm/cdc-acm.h
index 3a6fb80d1..43b7f1553 100644
--- a/cpu/cc253x/usb/common/cdc-acm/cdc-acm.h
+++ b/cpu/cc253x/usb/common/cdc-acm/cdc-acm.h
@@ -4,26 +4,21 @@
 #include "cdc.h"
 #include "contiki.h"
 
-void
-usb_cdc_acm_setup();
+void usb_cdc_acm_setup();
 
 
 #define USB_CDC_ACM_LINE_CODING 0x1
 #define USB_CDC_ACM_LINE_STATE  0x2
-uint8_t
-usb_cdc_acm_get_events(void);
+uint8_t usb_cdc_acm_get_events(void);
 
 
 #define USB_CDC_ACM_DTE 0x1
 #define USB_CDC_ACM_RTS 0x2
-uint8_t
-usb_cdc_acm_get_line_state(void);
+uint8_t usb_cdc_acm_get_line_state(void);
 
 
-const struct usb_cdc_line_coding *
-usb_cdc_acm_get_line_coding(void);
+const struct usb_cdc_line_coding *usb_cdc_acm_get_line_coding(void);
 
-void
-usb_cdc_acm_set_event_process(struct process *p);
+void usb_cdc_acm_set_event_process(struct process *p);
 
 #endif /* __CDC_ACM_H__UFV6K50827__ */