{ccid,sniffer}.c: Add comments on USB callbacks
diff --git a/firmware/libcommon/source/sniffer.c b/firmware/libcommon/source/sniffer.c
index 3f16a7e..67c11a2 100644
--- a/firmware/libcommon/source/sniffer.c
+++ b/firmware/libcommon/source/sniffer.c
@@ -71,11 +71,13 @@
* Initialization routine
*-----------------------------------------------------------------------------*/
+/* Called during USB enumeration after device is enumerated by host */
void Sniffer_configure(void)
{
TRACE_INFO("Sniffer config\n");
}
+/* called when *different* configuration is set by host */
void Sniffer_exit(void)
{
TRACE_INFO("Sniffer exit\n");
@@ -84,6 +86,7 @@
USART_SetReceiverEnabled(USART_PHONE, 0);
}
+/* called when *CCID* configuration is set by host */
void Sniffer_init(void)
{
TRACE_INFO("Sniffer Init\n");
@@ -100,6 +103,7 @@
NVIC_EnableIRQ(USART1_IRQn);
}
+/* main (idle/busy) loop of this USB configuration */
void Sniffer_run(void)
{
check_data_from_phone();