PORTS Forum

Ports and Interfaces => USB => Topic started by: kittu on April 24, 2012, 12:49:24 am

Title: Hid1.0 low speed not working on AMD Machine
Post by: kittu on April 24, 2012, 12:49:24 am: Hello,

I am working with Cypress Hid 1.0 Low speed Device.

This Device Is working Fine With Intel machine but gives problem on AMD Machine.

My AMD Machine Confugration is
Processor : AMD sempron145,2.1ghhz
RAM : 2gb
OS : Winxp sp2

Usb Mouse & Keyboards are working fine on same machine but my device is not working.

as i debugg the code i found that below call gets failed

Result=SetupDiEnumDeviceInterfaces
         (hDevInfo,
         0,
         &HidGuid,

before this function we use

HidD_GetHidGuid(&HidGuid);

   /*
   API function: SetupDiGetClassDevs
   Returns: a handle to a device information set for all installed devices.
   Requires: the GUID returned by GetHidGuid.
   */

   hDevInfo=SetupDiGetClassDevs
      (&HidGuid,
      NULL,
      NULL,
      DIGCF_PRESENT|DIGCF_INTERFACEDEVICE);

   devInfoData.cbSize = sizeof(devInfoData);

this function are working fine.

my device is suppose to be not enumrate with amd Machine

Let Me know what is the problem with AMD Machine.

Thank You.
Title: Re: Hid1.0 low speed not working on AMD Machine
Post by: Jan Axelson on April 24, 2012, 08:51:06 am: If the device doesn't show up as working in Windows Device Manager, it didn't enumerate successfully.

Use a protocol analyzer or whatever debugging tools you have to find out what the host is sending and how the device is responding during enumeration.

Jan
Title: Re: Hid1.0 low speed not working on AMD Machine
Post by: kittu on April 25, 2012, 02:14:19 am: Thank You For reply

i tried with sourceUSb protocol analyzer tool

but the problem is that machine is unable to find the device

so analyzer dose not get any input

is any other suggestion ???

thank you
Title: Re: Hid1.0 low speed not working on AMD Machine
Post by: Jan Axelson on April 25, 2012, 10:11:13 am: Use a hardware protocol analyzer, a software analyzer that shows enumeration traffic, or other debugging tools such as a monitor program for your hardware.

Jan