On Tuesday 18 July 2006 7:56 am, Vlad Rezki wrote:
> Hello,
> 
> There is  UPS APC RS-500 and ibusb(newhidups) library is used. Linux 2.6.10 
> kernel.
> The 'usb_claim_interface' function returns -EBUSY when 'newhidups' is 
> executed,
> it's ok because this interface already claimed by usbhid.
> 
> At that time function 'usb_detach_kernel_driver_np' is executed,
> to detach driver from this interface, then retry claiming and 
> code work fine. 
> 
> It's also ok, but /sys/class/usb/hiddev0 and /dev/usb/hiddev0 will be
> removed.
> 
> How to make so that HID device isn't being removed from the system?

Don't detatch the kernel driver if you don't want the devices it
provides to be removed...

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