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Merge pull request #3084 from joelpmichael/hcd-template-comments

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note potential issues using ep_desc in hcd_edpt_open()
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HiFiPhile 2025-04-18 11:25:59 +02:00 committed by GitHub
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src/portable/template/hcd_template.c
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@ -106,6 +106,11 @@ void hcd_device_close(uint8_t rhport, uint8_t dev_addr) {
// Open an endpoint
bool hcd_edpt_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_endpoint_t const * ep_desc) {
(void) rhport; (void) dev_addr; (void) ep_desc;
// NOTE: ep_desc is allocated on the stack when called from usbh_edpt_control_open()
// You need to copy the data into a local variable who maintains the state of the endpoint and transfer.
// Check _hcd_data in hcd_dwc2.c for example.
return false;
}