Rename the f parameter into hz to avoid confusion with a loopcounter

Author: adustm

drivers/CAN.cpp

@@ -34,14 +34,14 @@ CAN::CAN(PinName rd, PinName td) : _can(), _irq() {
     can_irq_init(&_can, (&CAN::_irq_handler), (uint32_t)this);
 }
 
-CAN::CAN(PinName rd, PinName td, int f) : _can(), _irq() {
+CAN::CAN(PinName rd, PinName td, int hz) : _can(), _irq() {
     // No lock needed in constructor
 
     for (int i = 0; i < sizeof _irq / sizeof _irq[0]; i++) {
         _irq[i].attach(donothing);
     }
 
-    can_init_freq(&_can, rd, td, f);
+    can_init_freq(&_can, rd, td, hz);
     can_irq_init(&_can, (&CAN::_irq_handler), (uint32_t)this);
 }
 

drivers/CAN.h

@@ -116,9 +116,9 @@ class CAN {
       *
       * @param rd the rd pin
       * @param td the td pin
-      * @param f the bus frequency in hertz
+      * @param hz the bus frequency in hertz
       */
-    CAN(PinName rd, PinName td, int f);
+    CAN(PinName rd, PinName td, int hz);
 
     virtual ~CAN();