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subsys: usb: configure Interface descriptor at runtime

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Introduce function to configure interface descriptor at runtime.
It is simple to leave the corresponding function to configure the
interface descriptor and fix bInterfaceNumber and iInterface values,
for example.

Signed-off-by: Johann Fischer <j.fischer@phytec.de>
This commit is contained in:
Johann Fischer 2018-04-28 01:17:30 +02:00 • committed by Carles Cufí
commit 1237549082
3 changed files with 45 additions and 0 deletions
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7
include/usb/usb_device.h
View file

@ -105,6 +105,11 @@ typedef void (*usb_ep_callback)(u8_t ep,
typedef int (*usb_request_handler) (struct usb_setup_packet *detup,
s32_t *transfer_len, u8_t **payload_data);
/**
* Function for interface runtime configuration
*/
typedef void (*usb_interface_config)(u8_t bInterfaceNumber);
/*
* USB Endpoint Configuration
*/
@ -169,6 +174,8 @@ struct usb_cfg_data {
const u8_t *usb_device_description;
/** Pointer to interface descriptor */
const void *interface_descriptor;
/** Function for interface runtime configuration */
usb_interface_config interface_config;
/** Callback to be notified on USB connection status change */
usb_status_callback cb_usb_status;
/** USB interface (Class) handler and storage space */