Re: [Libusb-devel] issue by sending index = 2 with usb_control_msg in libusb project

[Xiaofan C. <xia...@gm...>]

On Fri, Oct 15, 2010 at 7:47 PM, Xiaofan Chen <xia...@gm...> wrote:
> On Fri, Oct 15, 2010 at 1:30 PM, Peter Stuge <pe...@st...> wrote:
>>> I've never tried to use Control transfer without claiming the
>>> interface. Technically it should work though. But I will check.
>>
>> To endpoint 0 it should work perfectly, on all platforms. I
>> appreciate all testing!
>>
>
> I take the following test program, comment out the
> interrupt transfer based test, and then comment out
> the libusb_set_configuration and libusb_claim_interface
> call.
> http://picusb.googlecode.com/files/libusb1_lvrhid5.c
>
> Firstly I tested under Linux (Ubuntu 10.10 32bit)
> and it works fine.
>
> Then I tested the libusb-pbatard git branch under Windows 7
> 32bit. It also works. But it actually claims the interface 0 because
> of the auto-claiming feature.

If I comment out the Auto-Claim feature and rebuild libusb-pbatard,
then it does not work. I was kind of expecting this when I
said "But I will check".

But I think this is not a real issue since Auto-Claim is anyway
needed for Windows backend as per the previous discussions.

...
libusb:debug [libusb_open] open 2.4
libusb:debug [hid_open] set maximum input buffer size to 512
libusb:debug [hid_open] 1 HID input report value(s) found
libusb:debug [hid_open]   Report ID: 0x00
libusb:debug [hid_open] 1 HID output report value(s) found
libusb:debug [hid_open]   Report ID: 0x00
libusb:debug [hid_open] 1 HID feature report value(s) found
libusb:debug [hid_open]   Report ID: 0x00
libusb:debug [libusb_unref_device] destroy device 2.255
libusb:debug [libusb_unref_device] destroy device 1.255
libusb:debug [libusb_unref_device] destroy device 1.1
libusb:debug [libusb_unref_device] destroy device 1.2
libusb:debug [libusb_unref_device] destroy device 2.2
libusb:debug [libusb_unref_device] destroy device 2.1
libusb:debug [libusb_unref_device] destroy device 2.3
libusb:warning [hid_submit_control_transfer] no interface available for control
transfer
Control Out error -5
libusb:warning [hid_submit_control_transfer] no interface available for control
transfer
Control Out error -5
libusb:debug [libusb_release_interface] interface 0
libusb:debug [libusb_close]
libusb:debug [libusb_unref_device] destroy device 2.4
libusb:debug [libusb_exit]
libusb:debug [libusb_exit] destroying default context
libusb:debug [usbi_remove_pollfd] remove fd 3
libusb:debug [windows_clock_gettime_threaded] timer thread quitting



-- 
Xiaofan