I succesfully built btstack for mips architecture with the latest libusb (1.0.9) to use it with my bluetooth usb key. My uname -a gives me : Linux MiOS_123456789 2.6.37.1 #1 Fri Mar 2 05:49:10 PST 2012 mips GNU/Linux

Here my configure line : $ ./configure --host=mipsel-openwrt-linux --prefix=/home/gostai/crosstools/openwrt/staging_dir/toolchain-mipsel_r2_gcc-4.6-linaro_uClibc-0.9.33 --enable-relocatable --disable-rpath --disable-powermanagement --disable-springboard --with-vendor-id=0x0a5c --with-product-id=0x200a --with-hci-transport=usb

I tried the "inquiry" exemple but BTdaemon freezes. Here the following output with libusb verbosity :

root@MiOS_123456789:~/bluetooth# ./BTdaemon BTdaemon started registering packet handler config.h: HAVE_RFCOMM Socket created at /tmp/BTstack Server up and running ... socket_connection_accept new connection 5 DAEMON_EVENT_CONNECTION_OPENED 0x6f6058 Nr Connections changed, new 1 hci_power_control: 1, current mode 0 libusb: 0.000000 debug [libusb_init] libusb-1.0.9 libusb: 0.000387 debug [find_usbfs_path] found usbfs at /proc/bus/usb libusb: 0.000578 debug [op_init] bulk continuation flag supported libusb: 0.000683 debug [op_init] zero length packet flag supported libusb: 0.000859 debug [op_init] found usb devices in sysfs libusb: 0.001399 debug [usbi_add_pollfd] add fd 6 events 1 libusb: 0.001547 debug [usbi_io_init] timerfd not available (code -1 error 22) libusb: 0.001660 debug [libusb_init] created default context Want vend: 0a5c, prod: 200a libusb: 0.001795 debug [libusb_get_device_list] libusb: 0.001973 debug [sysfs_scan_device] scan usb1 libusb: 0.002541 debug [sysfs_scan_device] bus=1 dev=1 libusb: 0.002674 debug [enumerate_device] busnum 1 devaddr 1 session_id 257 libusb: 0.002791 debug [enumerate_device] allocating new device for 1/1 (session 257) libusb: 0.003285 debug [sysfs_scan_device] scan usb2 libusb: 0.003685 debug [sysfs_scan_device] bus=2 dev=1 libusb: 0.003810 debug [enumerate_device] busnum 2 devaddr 1 session_id 513 libusb: 0.003925 debug [enumerate_device] allocating new device for 2/1 (session 513) libusb: 0.005826 debug [sysfs_scan_device] scan 2-1 libusb: 0.006237 debug [sysfs_scan_device] bus=2 dev=2 libusb: 0.006360 debug [enumerate_device] busnum 2 devaddr 2 session_id 514 libusb: 0.006475 debug [enumerate_device] allocating new device for 2/2 (session 514) libusb: 0.006912 debug [libusb_get_device_descriptor] libusb: 0.007118 debug [libusb_get_device_descriptor] libusb: 0.007276 debug [libusb_get_device_descriptor] libusb: 0.007442 debug [libusb_open] open 2.2 libusb: 0.007573 debug [op_open] opening /proc/bus/usb/002/002 libusb: 0.007699 debug [usbi_add_pollfd] add fd 8 events 4 libusb: 0.007870 debug [libusb_unref_device] destroy device 1.1 libusb: 0.007994 debug [libusb_unref_device] destroy device 2.1 libusb open 0, handle 0x6f6620 libusb: 0.008149 debug [libusb_kernel_driver_active] interface 0 libusb_detach_kernel_driver claiming interface 0... libusb: 0.008279 debug [libusb_claim_interface] interface 0 claimed interface 0 libusb: 0.008456 debug [submit_bulk_transfer] need 1 urbs for new transfer with length 1025 libusb: 0.008637 debug [submit_bulk_transfer] need 1 urbs for new transfer with length 1025 libusb: 0.008766 debug [submit_bulk_transfer] need 1 urbs for new transfer with length 1025 libusb: 0.008892 debug [submit_bulk_transfer] need 1 urbs for new transfer with length 1025 libusb: 0.009020 debug [submit_bulk_transfer] need 1 urbs for new transfer with length 1025 libusb: 0.009145 debug [submit_bulk_transfer] need 1 urbs for new transfer with length 1025 libusb: 0.009272 debug [submit_bulk_transfer] need 1 urbs for new transfer with length 1025 libusb: 0.009398 debug [submit_bulk_transfer] need 1 urbs for new transfer with length 1025 Async using timers: New state: 1 Bluetooth status: 1 libusb: 0.009972 debug [libusb_get_next_timeout] next timeout in 1.998480s libusb: 0.010162 debug [libusb_handle_events_timeout_completed] doing our own event handling libusb: 0.010248 debug [handle_events] poll() 2 fds with timeout in 1999ms libusb: 0.010372 debug [handle_events] poll() returned 1 libusb: 0.010468 debug [reap_for_handle] urb type=2 status=0 transferred=4 libusb: 0.010578 debug [handle_control_completion] handling completion status 0 libusb: 0.010669 debug [usbi_handle_transfer_completion] transfer 0x6f6bf4 has callback 0x42b9f0 libusb: 0.010780 debug [ctrl_transfer_cb] actual_length=4 libusb: 0.109681 debug [libusb_get_next_timeout] next timeout in 1.898772s libusb: 0.109837 debug [libusb_handle_events_timeout_completed] doing our own event handling libusb: 0.109921 debug [handle_events] poll() 2 fds with timeout in 0ms libusb: 0.110028 debug [handle_events] poll() returned 1 libusb: 0.110126 debug [reap_for_handle] urb type=1 status=-140 transferred=6 libusb: 0.110238 debug [handle_bulk_completion] handling completion status -140 of bulk urb 1/1 libusb: 0.110350 debug [handle_bulk_completion] last URB in transfer --> complete! libusb: 0.110430 debug [usbi_handle_transfer_completion] transfer 0x6f66b4 has callback 0x4157c0 libusb: 0.110912 debug [libusb_get_next_timeout] next timeout in 1.897723s libusb: 0.111048 debug [libusb_handle_events_timeout_completed] doing our own event handling libusb: 0.111163 debug [handle_events] poll() 2 fds with timeout in 1898ms libusb: 0.111274 debug [handle_events] poll() returned 1 libusb: 0.111363 debug [reap_for_handle] urb type=2 status=0 transferred=3 libusb: 0.111470 debug [handle_control_completion] handling completion status 0 libusb: 0.111556 debug [usbi_handle_transfer_completion] transfer 0x6f6bf4 has callback 0x42b9f0 libusb: 0.111661 debug [ctrl_transfer_cb] actual_length=3

libusb: 0.111763 debug [submit_bulk_transfer] need 1 urbs for new transfer with length 1025

inquiry displays nothing.

The same program with the same usb bluetooth key works on my x86 uptodate ubuntu computer.

Whats wrong ?

hi. awesome. do you have documentation of that on the web? I have no idea. It mostly likely gets stuck in the USB transport driver. If you find where it hands, please post on the btstack developer group (see project home page on the left)