From aa45036037c3a120ebfdd6d253b47f07c8ccd936 Mon Sep 17 00:00:00 2001
From: Martin Whitaker <memtest@martin-whitaker.me.uk>
Date: Sun, 3 Aug 2025 13:22:04 +0100
Subject: [PATCH] Add extra debug message and don't release XHCI slots for
 non-keyboard devices.

---
 system/usbhcd.c | 2 ++
 system/xhci.c   | 4 ++++
 2 files changed, 6 insertions(+)

diff --git a/system/usbhcd.c b/system/usbhcd.c
index 6a2bfe8..e1849cb 100644
--- a/system/usbhcd.c
+++ b/system/usbhcd.c
@@ -370,6 +370,7 @@ static bool scan_hub_ports(const usb_hcd_t *hcd, const usb_hub_t *hub, int *num_
             continue;
         }
 
+#if 0
         // If we didn't find any keyboards, we can disable the port and release the slot.
         build_setup_packet(&setup_pkt, USB_REQ_TO_HUB_PORT | USB_REQ_CLASS, HUB_CLR_FEATURE, HUB_PORT_ENABLE, port_num, 0);
         (void)hcd->methods->setup_request(hcd, hub->ep0, &setup_pkt);
@@ -377,6 +378,7 @@ static bool scan_hub_ports(const usb_hcd_t *hcd, const usb_hub_t *hub, int *num_
         if (hcd->methods->release_slot) {
             (void)hcd->methods->release_slot(hcd, device_id);
         }
+#endif
     }
 
     return keyboard_found;
diff --git a/system/xhci.c b/system/xhci.c
index efce9d0..ecd7337 100644
--- a/system/xhci.c
+++ b/system/xhci.c
@@ -782,6 +782,10 @@ static bool assign_address(const usb_hcd_t *hcd, const usb_hub_t *hub, int port_
         print_usb_info("invalid device descriptor port=%i type=%i length=%i", port_num, desc->type, desc->length);
         return false;
     }
+    {
+        usb_device_desc_t *device = (usb_device_desc_t *)data_buffer;
+        print_usb_info("fetched length=%i max_packet_size=%i", fetch_length, device->max_packet_size);
+    }
 
     if (command_flags != 0) {
         usb_device_desc_t *device = (usb_device_desc_t *)data_buffer;