Diff: USBHostHub/USBHostHub.cpp

Revision:

28:a55c5a98d5e9

Parent:

27:aa2fd412f1d3

Child:

31:9a462d032742

--- a/USBHostHub/USBHostHub.cpp	Tue Dec 02 15:16:39 2014 +0000
+++ b/USBHostHub/USBHostHub.cpp	Wed Dec 03 13:32:37 2014 +0000
@@ -53,6 +53,16 @@
 USBHostHub::USBHostHub() {
     host = NULL;
     init();
+
+    buf = host->getSafeMem(sizeof(HubDescriptor));
+}
+
+USBHostHub::~USBHostHub()
+{
+    if (buf != NULL) {
+        host->returnSafeMem(buf);
+        buf = NULL;
+    }
 }
 
 void USBHostHub::init() {
@@ -257,14 +267,17 @@
 }
 
 uint32_t USBHostHub::getPortStatus(uint8_t port) {
+    uint8_t* safe = host->getSafeMem(4);
     uint32_t st;
     host->controlRead(  dev,
                         USB_DEVICE_TO_HOST | USB_REQUEST_TYPE_CLASS | USB_RECIPIENT_INTERFACE | USB_RECIPIENT_ENDPOINT,
                         GET_STATUS,
                         0,
                         port,
-                        (uint8_t *)&st,
+                        safe,
                         4);
+    st = *((uint32_t*)safe);
+    host->returnSafeMem(safe);
     return st;
 }