TWRVF65GS10-MQX USB host application host_ch9 functions not working

manjug — Mon, 30 Mar 2015 08:59:09 GMT

Hi,

When i call host_ch9 function to request device for getting descriptor it's not getting the descriptor values in my host application code-

case USB_DEVICE_INTERFACED:

status=_usb_host_ch9_get_descriptor(usb_device.DEV_HANDLE,

USB_DESC_TYPE_DEV<<8, 0, USB_DESC_LEN_DEV,

(unsigned char *)&dev_ptr->dev_descriptor);

if (status != USB_OK)

{

printf("\r\n no descriptor from ch9functions");

}

e = _lwevent_get_signalled();

if (USB_EVENT_DATA & e) {

if(usb_device.DEV_STATE == USB_DEVICE_INUSE) {

break;

}

else{

usb_device.DEV_STATE = USB_DEVICE_INUSE;

break;

}

if (USB_EVENT_CTRL & e) {

/* kick the outer loop again to handle the CTRL event */

_lwevent_set(&USB_Event, USB_EVENT_CTRL);

break;

}

usb_device.DEV_STATE = USB_DEVICE_INUSE;

break;

I have attached my host application code file.Please help me on this.

Original Attachment has been moved to: xl4usbip_host.h.txt.zip

Original Attachment has been moved to: xl4usbip_host.c.txt.zip

Re: TWRVF65GS10-MQX USB host application host_ch9 functions not working

alejandrolozan1 — Mon, 06 Apr 2015 16:33:11 GMT

Hi,

Are you getting a kind of error like USBERR_DEVICE_NOT_FOUND or USBERR_INVALID_PIPE_HANDLE? or maybe you are just getting a buffer with 0 data.

/Alejandro

alejandrolozan1 — Thu, 07 May 2015 15:32:42 GMT

Hi,

It has been a while, I wonder if you have solved the problem.

/Alejandro