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-rw-r--r--src/portable/raspberrypi/rp2040/hcd_rp2040.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/portable/raspberrypi/rp2040/hcd_rp2040.c b/src/portable/raspberrypi/rp2040/hcd_rp2040.c
index e9118c6a3..6ca992954 100644
--- a/src/portable/raspberrypi/rp2040/hcd_rp2040.c
+++ b/src/portable/raspberrypi/rp2040/hcd_rp2040.c
@@ -380,6 +380,9 @@ bool hcd_init(uint8_t rhport)
// Force VBUS detect to always present, for now we assume vbus is always provided (without using VBUS En)
usb_hw->pwr = USB_USB_PWR_VBUS_DETECT_BITS | USB_USB_PWR_VBUS_DETECT_OVERRIDE_EN_BITS;
+ // Remove shared irq if it was previously added so as not to fill up shared irq slots
+ irq_remove_handler(USBCTRL_IRQ, hcd_rp2040_irq);
+
irq_add_shared_handler(USBCTRL_IRQ, hcd_rp2040_irq, PICO_SHARED_IRQ_HANDLER_HIGHEST_ORDER_PRIORITY);
// clear epx and interrupt eps