topic Re: How to create two HID interfaces by using hid-generic sample codes in LPC Microcontrollers

How to create two HID interfaces by using hid-generic sample codes

samchen_tw — Thu, 14 Jun 2018 02:12:20 GMT

I want to create two HID interfaces and refer to hid-generic sample codes.

I have no idea how to do.

Could someone give me a hand.

Thanks.

Sam

Re: How to create two HID interfaces by using hid-generic sample codes

samchen_tw — Fri, 15 Jun 2018 05:53:42 GMT

I am following this composite device sample to create 2 hid interface.

LPCOpen-keil-lpc43xx/main.c at master · micromint/LPCOpen-keil-lpc43xx · GitHub

Hope it works.

Thanks.

Sam

Re: How to create two HID interfaces by using hid-generic sample codes

jeremyzhou — Mon, 18 Jun 2018 10:57:37 GMT

Hi Sam Chen,

How is going on about this issue?
Have a great day,
TIC

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Re: How to create two HID interfaces by using hid-generic sample codes

samchen_tw — Fri, 29 Jun 2018 06:26:52 GMT

It works for me to invoke usb_hid_init twice with difffer interface description like this.

  ret = usb_hid_init(g_hUsb,
         (USB_INTERFACE_DESCRIPTOR *) &USB_FsConfigDescriptor[sizeof(USB_CONFIGURATION_DESCRIPTOR)],
         &usb_param.mem_base,
         &usb_param.mem_size);

  ret = usb_hid_btn_init(g_hUsb,
    &USB_FsConfigDescriptor[sizeof(USB_CONFIGURATION_DESCRIPTOR) + USB_INTERFACE_DESC_SIZE + HID_DESC_SIZE + 2*USB_ENDPOINT_DESC_SIZE ],
         &usb_param.mem_base,
         &usb_param.mem_size);

Thanks

Sam