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Deploying to gh-pages from @ cherry-embedded/CherryUSB@832e4c45fb 🚀

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sakumisu
2025-07-01 13:23:17 +00:00
parent 605f20a6a6
commit b5d7bc8b77
5 changed files with 39 additions and 25 deletions
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47
_sources/api/api_port.rst.txt
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@@ -186,33 +186,36 @@ usbh_submit_urb
.. code-block:: C
struct usbh_urb {
void *hcpriv;
struct usbh_hubport *hport;
struct usb_endpoint_descriptor *ep;
uint8_t data_toggle;
struct usb_setup_packet *setup;
uint8_t *transfer_buffer;
uint32_t transfer_buffer_length;
int transfer_flags;
uint32_t actual_length;
uint32_t timeout;
int errorcode;
uint32_t num_of_iso_packets;
uint32_t start_frame;
usbh_complete_callback_t complete;
void *arg;
#if defined(__ICCARM__) || defined(__ICCRISCV__) || defined(__ICCRX__)
struct usbh_iso_frame_packet *iso_packet;
#else
struct usbh_iso_frame_packet iso_packet[0];
#endif
};
struct usbh_urb {
usb_slist_t list;
void *hcpriv;
struct usbh_hubport *hport;
struct usb_endpoint_descriptor *ep;
uint8_t data_toggle;
uint8_t interval;
struct usb_setup_packet *setup;
uint8_t *transfer_buffer;
uint32_t transfer_buffer_length;
int transfer_flags;
uint32_t actual_length;
uint32_t timeout;
int errorcode;
uint32_t num_of_iso_packets;
uint32_t start_frame;
usbh_complete_callback_t complete;
void *arg;
#if defined(__ICCARM__) || defined(__ICCRISCV__) || defined(__ICCRX__)
struct usbh_iso_frame_packet *iso_packet;
#else
struct usbh_iso_frame_packet iso_packet[0];
#endif
};
- **hcpriv** 主机控制器驱动私有成员
- **hport** 当前 urb 使用的 hport
- **ep** 当前 urb 使用的 ep
- **data_toggle** 当前 data toggle
- **interval** urb 传输间隔，单位 us，如果 interval 大于 1000us，则需要使用软件定时器来维护
- **setup** setup 请求缓冲区，端点0使用
- **transfer_buffer** 传输的数据缓冲区
- **transfer_buffer_length** 传输长度