6 Jan
2020
6 Jan
'20
2:02 p.m.
On 2019-12-30 13:59, Brendan Horan wrote:
[ 0.005245] [00000d2c] libusb: debug [libusb_open] open 1.6 [ 0.005274] [00000d2c] libusb: debug [usbi_add_pollfd] add fd 28 events 4 [ 0.005279] [00000d2c] libusb: debug [libusb_claim_interface] interface 0 [0.005390] ERROR: Failed to claim the usb interface (LIBUSB_ERROR_BUSY). [in ../../src/usbhid.c:604 (dc_usbhid_open)] [ 0.005299] [00000d2c] libusb: debug [libusb_close] [ 0.005304] [00000d2c] libusb: debug [usbi_remove_pollfd] remove fd 28 [ 0.005316] [00000d2c] libusb: debug [libusb_exit]
I'm afraid this didn't give much more info. It looks like the underlying ioctl syscall:
ioctl(fd, IOCTL_USBFS_CLAIMINTF, &iface);
failed with EBUSY, and that's about it. There is no clue why it failed.
Jef