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Merge branch 'feature/usb_host/cdc_driver' into 'master'

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USB: Add CDC-ACM subclass host driver

See merge request espressif/esp-idf!14515
This commit is contained in:
Tomas Rezucha
2021-12-09 15:21:24 +00:00
parent f812714ec4 dd1b698075
commit 6e9229945a
23 changed files with 2747 additions and 1 deletions
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1
components/usb/include/usb/usb_host.h
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@@ -413,6 +413,7 @@ esp_err_t usb_host_transfer_alloc(size_t data_buffer_size, int num_isoc_packets,
*
* - Free a transfer object previously allocated using usb_host_transfer_alloc()
* - The transfer must not be in-flight when attempting to free it
* - If a NULL pointer is passed, this function will simply return ESP_OK
*
* @param[in] transfer Transfer object
* @return esp_err_t

5
components/usb/usb_host.c
View File

@@ -571,6 +571,7 @@ static void _handle_pending_ep(client_t *client_obj)
esp_err_t usb_host_client_register(const usb_host_client_config_t *client_config, usb_host_client_handle_t *client_hdl_ret)
{
HOST_CHECK(p_host_lib_obj, ESP_ERR_INVALID_STATE);
HOST_CHECK(client_config != NULL && client_hdl_ret != NULL, ESP_ERR_INVALID_ARG);
HOST_CHECK(client_config->max_num_event_msg > 0, ESP_ERR_INVALID_ARG);
if (!client_config->is_synchronous) {
@@ -1229,7 +1230,9 @@ esp_err_t usb_host_transfer_alloc(size_t data_buffer_size, int num_isoc_packets,
esp_err_t usb_host_transfer_free(usb_transfer_t *transfer)
{
HOST_CHECK(transfer != NULL, ESP_ERR_INVALID_ARG);
if (transfer == NULL) {
return ESP_OK;
}
urb_t *urb = __containerof(transfer, urb_t, transfer);
urb_free(urb);
return ESP_OK;