I'd like to add that Mass Storage works fine on the same phone when it's plugged in. Fastboot works too. Only adb fails.
Le 24/03/2015 19:41, Julien Wajsberg a écrit : > Hi, > > I have a big issue with adb: it can't see any of my phones. "adb > devices" returns an empty list. > It came all of a sudden: I updated nothing, it just appeared today. This > morning it worked, this afternoon it doesn't. > The funniest (in a sense) is that it happens on both my computers, both > running Debian Jessie. It stopped working on one of them last week, and > on the second one only today. > > I already tried to do the usual checks: udev rules, run as root, > kill-server, check that no other adb was running, reboot the computer, > update Android SDK, try other phones, try other cables: no luck. (same > phone, same cable, on another computer: works fine). > I tried removing MTP support and ModemManager (thinking this might > interfere) but it brought no improvement. > > Paul Adenot helped me debugging a little more using ADB_TRACE=1 and > strace and looking at the source code for adb. > > Here are the logs for what I found: > > $ ADB_TRACE=1 adb -P 5037 fork-server server > system/core/adb/adb.c::main():Handling commandline() > system/core/adb/transport_local.c::local_init():transport: local client init > system/core/adb/usb_linux.c::device_poll_thread():Created device thread > system/core/adb/adb_auth_host.c::adb_auth_init():adb_auth_init > system/core/adb/adb_auth_host.c::get_user_keyfilepath():home '/home/julien' > system/core/adb/transport_local.c::client_socket_thread():transport: > client_socket_thread() starting > system/core/adb/adb_auth_host.c::get_user_key():user key > '/home/julien/.android/adbkey' > system/core/adb/adb_auth_host.c::read_key():read_key > '/home/julien/.android/adbkey' > system/core/adb/usb_linux.c::register_device():[ usb located new device > /dev/bus/usb/001/100 (130/2/1) ] > system/core/adb/usb_linux.c::register_device():[ usb open > /dev/bus/usb/001/100 fd = 8] > system/core/adb/usb_linux.c::register_device():[ usb open > /dev/bus/usb/001/100 error=16, err_str = Device or resource busy] > OK > > The error seems to happen when the code tries to run ioctl with > USBDEVFS_CLAIMINTERFACE [1]. > > [1] http://androidxref.com/5.1.0_r1/xref/system/core/adb/usb_linux.c#609 > > This likely means that something else is already claiming this > interface, but I don't know how to find out where this comes from. > > > For the record, here is the log when this works fine (from another > computer -- you'll easily find out whose computer it is ;) ): > > $ ADB_TRACE=1 adb -P 5037 fork-server server > adb.c::main():Handling commandline() > transport_local.c::local_init():transport: local client init > usb_linux.c::device_poll_thread():Created device thread > adb_auth_host.c::adb_auth_init():adb_auth_init > transport_local.c::client_socket_thread():transport: > client_socket_thread() starting > adb_auth_host.c::get_user_keyfilepath():home '/home/jlorenzo' > adb_auth_host.c::get_user_key():user key '/home/jlorenzo/.android/adbkey' > adb_auth_host.c::read_key():read_key '/home/jlorenzo/.android/adbkey' > usb_linux.c::register_device():[ usb located new device > /dev/bus/usb/002/124 (130/2/1) ] > OK > usb_linux.c::register_device():[ usb open /dev/bus/usb/002/124 fd = 10] > > So it's really comparable except there is no error. > > Hope someone will be able to help me here, I'm quite stuck :/ > > Regards,
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