fix usb kinda

Author: mateoconlechuga

core/usb/msd.c

@@ -1,6 +1,7 @@
 #include "device.h"
 
 #include "../os/os.h"
+#include "../emu.h"
 
 #include <errno.h>
 #include <stdbool.h>
@@ -167,6 +168,8 @@ int usb_msd_device(usb_event_t *event) {
                         transfer->length = 0;
                         transfer->status = USB_TRANSFER_COMPLETED;
                     } else {
+                        gui_console_printf("[MSD] Unhandled control transfer %02X:%02X %04X:%04X\n",
+                            bmRequestType, bRequest, wValue, wIndex);
                         transfer->buffer = NULL;
                         transfer->length = 0;
                         transfer->status = USB_TRANSFER_STALLED;

core/usb/usb.c

@@ -15,7 +15,6 @@
 
 #define CONTROL_MPS 0x40
 
-/* Global GPT state */
 usb_state_t usb;
 
 typedef enum usb_qtype {
@@ -244,8 +243,10 @@ static void usb_unplug(void) {
 static void usb_plug_complete(void) {
     if (usb.device != usb_disconnected_device) {
         usb_plug();
+        sched_set(SCHED_USB, 1);
     } else {
         usb_unplug();
+        sched_clear(SCHED_USB);
     }
 }