Objective Development Forums

Re: Problem with usb_control_msg

2009-12-22T21:02:34+02:00

See http://www.usb.org/developers/hidpage/

Statistics: Posted by christian — Tue Dec 22, 2009 9:02 pm

Re: Problem with usb_control_msg

2009-12-22T20:41:55+02:00

Where can I find the HID USB paper?

Statistics: Posted by Guest — Tue Dec 22, 2009 8:41 pm

Re: Problem with usb_control_msg

2009-12-22T17:19:55+02:00

If you want to send arbitrary control messages, you need libusb. Otherwise you can only send those controls defined in the USB HID paper.

Statistics: Posted by christian — Tue Dec 22, 2009 5:19 pm

Re: Problem with usb_control_msg

2009-12-22T11:56:07+02:00

Hi,

Problem solved it was because of HID type of my device i've changed it and all works fine.

is it not possible to send usbFunctionWrite to an HID device?

Do I need to use LibUSB in this case or can I do the same thing with HID?

Thanks, Tom

Statistics: Posted by Guest — Tue Dec 22, 2009 11:56 am

Re: Problem with usb_control_msg

2009-11-19T10:28:34+02:00

Problem solved it was because of HID type of my device i've changed it and all works fine.

Statistics: Posted by lll7 — Thu Nov 19, 2009 10:28 am

Re: Problem with usb_control_msg

2009-11-19T00:03:05+02:00

Hi! Try to write new clear project and call usbFunctionWrite. Make shure that cstack and heap are correct. And if you try to call usbFunctionWrite in HID example, i'm not shure that usbFunctionWrite is called by V-USB driver at all.

Statistics: Posted by Guest — Thu Nov 19, 2009 12:03 am

Re: Problem with usb_control_msg

2009-11-18T20:32:53+02:00

I've got the same problem usbFunctionWrite() is never called. I've made all those steps with configuring usbconfig.h also my program returns USB_NO_MSG in usbFunctionSetup(), i've check it by using blinking diode. In usbFunctionWrite() i just want to flash a diode but it dosen't work. Have anyone have some ideas, can it be becouse of the HID device type(Mouse) witch i'm using?

Statistics: Posted by Guest — Wed Nov 18, 2009 8:32 pm

Re: Problem with usb_control_msg

2009-10-26T23:11:35+02:00

And did you configure V-USB with USB_CFG_IMPLEMENT_FN_WRITE defined to 1 in usbconfig.h?

Statistics: Posted by christian — Mon Oct 26, 2009 11:11 pm

Re: Problem with usb_control_msg

2009-10-24T00:37:16+02:00

Hi,

I do return USB_NO_MSG which is defined as 255 in usbdrv.h:

Code:

#define USB_NO_MSG  ((usbMsgLen_t)-1)   /* constant meaning "no message" */

I tried with the value 255, to avoid the macro, but same result.

Any other ideas?

Statistics: Posted by ionte — Sat Oct 24, 2009 12:37 am

Re: Problem with usb_control_msg

2009-10-23T19:08:05+02:00

If you need to call usbFunctionWrite? you must return 0xFF in usbFunctionSetup!
This is necessary for V-USB lib driver! my email: lleeloo@mail.ru
Sorry for my English!

Statistics: Posted by Guest — Fri Oct 23, 2009 7:08 pm