Citeren "Daniel O'Connor" <doconnor at gsoft.com.au>:
> usb_control_msg: 161 1 769 0 0x813310c 2 4000
> USB error: error sending control message: Input/output error
> Can't retrieve Report 1: Input/output error
> upsdrv_updateinfo...
> Got to reconnect!
>
> usb_set_debug: Setting debugging level to 3 (on)
> usb_os_find_busses: Found /dev/usb0
> usb_os_find_busses: Found /dev/usb1
> usb_os_find_busses: Found /dev/usb2
> usb_os_find_busses: Found /dev/usb3
> usb_os_find_busses: Found /dev/usb4
> usb_os_find_devices: couldn't open device /dev/ugen0: Device busy
> No appropriate HID device found
> upsdrv_updateinfo...
> Got to reconnect!
Maybe FreeBSD requires that the existing connection to a USB device is
closed before it can be opened again. Currently the libusb_open()
function (in 'drivers/libusb.c') only closes an existing connection if
SUN_LIBUSB is defined (lines 106-109) to work around a double free
corruption in Linux if devices are detached (since the kernel will do
this already). But it could very well be that this is required in
FreeBSD (or other systems) as well.
Best regards, Arjen
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