Fixes RP2040 buffer reallocation overrun problem (#642)
Fix running out of memory on a device that repeatedly closes and opens an endpoint. This is a workaround at the moment. A better solution would be to implement reclaiming usb buffer memory when closing an endpoint (i.e. implement dcd_edpt_close).
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@ -164,8 +164,12 @@ static void _hw_endpoint_init(struct hw_endpoint *ep, uint8_t ep_addr, uint wMax
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ep->endpoint_control = &usb_dpram->ep_ctrl[num-1].out;
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}
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// Now alloc a buffer and fill in endpoint control register
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_hw_endpoint_alloc(ep);
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// Now if it hasn't already been done
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//alloc a buffer and fill in endpoint control register
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if(!(ep->configured))
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{
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_hw_endpoint_alloc(ep);
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}
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}
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ep->configured = true;
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