[libhid-discuss] libhid broken in 2.6.26 kernel works in 2.6.25.15

[amruth]

Thanks Charles for the info.
Any idea about broken pipe error.
I see hid working perfectly until 2.6.25.15 but broken in 2.6.26
I have also observed some of my applications is broken in 2.6.26 kernel.
I know that until 2.6.25.15 everything works but broken afterwards.
Is this API changed anyway in 2.26.2 or the bytes reading is changed
This call is being done in hid_preparation.c

byte const BUFLEN = 9;
#define USB_TIMEOUT 10000 
#define USB_ENDPOINT_IN 0x80

int len = usb_control_msg(hidif->dev_handle,
      USB_ENDPOINT_IN+1,
      USB_REQ_GET_DESCRIPTOR,
      (USB_DT_HID << 8) + 0, hidif->interface,
      (char*)buffer, BUFLEN,
      USB_TIMEOUT);

I get broken pipe error when I tried to get descriptors.
hid_force_open failed
TRACE: hid_prepare_hid_descriptor(): retrieving HID descriptor for USB 
device 001/002[0]...
USB error: error sending control message: Broken pipe
Can anybody please let me know what has changed in 2.6.26 kernel.

Thanks
Amruth p.v




--- On Tue, 8/19/08, Charles Lepple <clepple at ghz.cc> wrote:

> From: Charles Lepple <clepple at ghz.cc>
> Subject: Re: [libhid-discuss] libhid broken in 2.6.26 kernel works in 2.6.25.15
> To: amruth_pv at yahoo.com
> Cc: "libhid-discuss List" <libhid-discuss at lists.alioth.debian.org>
> Date: Tuesday, August 19, 2008, 7:08 PM
> On Aug 19, 2008, at 7:23 PM, amruth wrote:
> 
> > I am trying to use libhid for my device. I found out
> that libhid is  
> > not compatible to latest libusb-1.0.
> > I tried to compile and build using the latest libusb
> library, but I  
> > seeing lot of errors during building.
> 
> 
> libhid is only known to work with libusb-0.1 at this time.
> 
> -- 
> Charles Lepple