On Fri, Oct 26, 2012 at 6:21 PM, Stefano Di Martino <stefan...@gmx.net> wrote:
> Hi,
> I have the strange problem, that when I'm using pyUSB with libusbx as backend
> I get the error "Insufficient memory".
> I tried to use then libusbx directly and it end up in an similar error:
>
> "ERROR in retrieving string descriptor: LIBUSB_ERROR_NO_MEM"
>
> I have extended listdev.c:
>
> // ...
> char data[50];
>
> ret = libusb_get_string_descriptor_ascii(handle, desc.iManufacturer,
> (unsigned char*) data, 29);
>
> if (ret < 0) {
> const char *error = libusb_error_name (ret);
> printf("ERROR in retrieving string descriptor: %s\n", error);
> exit(1);
> }
>
>
> I get an similar error when I'm using xusb.c:
>
> Reading string descriptors:
> libusbx: warning [auto_claim] program assertion failed - autoclaim_count was
> nonzero
> libusbx: warning [auto_claim] program assertion failed - autoclaim_count was
> nonzero
>
> I'm using the dll of libusbx-1.0.14 for Windows.
> Any ideas?
The warnings are just a warning and may not be the real problem. You
should post more debug logs.
--
Xiaofan
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