Page Comparison

...

usbd_hid_os.h/usbd_hid_os.c

Prototype

void  USBD_HID_OS_OutputLock (CPU_INT08U   class_nbr,
                              USBD_ERR    *p_err);

Arguments

class_nbr

Class instance number.

...

The lock operation typically consists in pending on a semaphore. If the semaphore is free, the task continues normally its execution, otherwise it waits until another task releases the semaphore. p_err argument should be assigned as described in Table - Error code assignment according to pend operation result.