怎么获取USB设备的生产商？

[LiuChenghu]

获得了imanufacturer、iproduct、iserialnumber，如何通过这些索引获取字符串？

[xiaocq2001]

You can try ux_host_stack_device_string_get.

[LiuChenghu]

你好，我使用ux_host_stack_device_string_get来获取，但是里面的参数范围不知道怎么用，我大致用这样的方式读了一下，发现下面图中的问题，不是连续字符串。请问一下这个函数该怎么用？

[LiuChenghu]

还想请教一个问题，就是我使用USBX，识别到U盘后，过一会就一直进HAL_HCD_IRQHandler里面，其他程序无法执行，该如何排查问题？

[xiaocq2001]

/*    device                                Pointer to device instance    */
/*    descriptor_buffer                     Pointer to a buffer to fill   */
/*                                          LANGID or STRING descriptor   */
/*    length                                Length of buffer              */
/*    language_id                           0 to obtain LANGID descriptor */
/*                                          valid language ID to obtain   */
/*                                          string descriptor             */
/*    string_index                          Index of the string           */

For returned descriptor, please refer to section 9.6.7 String of USB 2.0 spec.

[xiaocq2001]

If your program keep interrupted and runs in HAL_HCD_IRQHandler, please check if some interrupt is not correctly handled so it keeps triggering interrupt.

[xiaocq2001]

No feedback long time, closing.