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This is the second version of a patch which demonstrates the possibility
of using adbd (Android Debug Bridge daemon) with a generic FunctionFS gadget
instead of a custom adb usb gadget in the Linux kernel. It contains changes
introduced after Benoit's review - thank you Benoit.
The patch adds a new usb access layer to adbd using FunctionFS. The former
usb access method is still available. The method is chosen at runtime
depending if /dev/usb-ffs/adb/ep0 or /dev/android_adb is accessible.
How to use on the target device:
$ insmod g_ffs.ko idVendor=<vendor ID> iSerialNumber=<some string>
$ mount -t functionfs adb /dev/usb-ffs/adb -o uid=2000,gid=2000
$ ./adbd
This patch requires a patch to bionic which adds <linux/usb_functionfs.h>
which is an exact copy of the relevant file in the linux kernel.
Change-Id: I4b42eb267ffa50fca7a5fba46f388a2f083e8b2d
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
[benoit@android.com: detect at runtime if functionfs is mounted
or fallback using f_adb]
Signed-off-by: Benoit Goby <benoit@android.com>
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For manufacturing and testing, there is a need to talk to
whatever device is connected to a given port on the host. This
change modifies adb's "-s" option to take either a serial
number or a device path. The device paths of the connected
devices can be listed using "adb devices -l" whose output
will resemble:
List of devices attached
016B75D60A00600D usb:2-5 device
3031D0B2E71D00EC usb:1-4.3 device
The second column lists the device paths. If the -l option is
not given, the output from "adb devices" will be the same as
it used to be (i.e. the paths will not be printed).
The device path can also be obtained with the get-devpath
command:
$adb -s 3031D0B2E71D00EC get-devpath
usb:1-4.3
Note that the format of the device paths are platform dependent.
The example above is from Linux. On OS-X, the paths will be
"usb:" followed by hex digits. For other platforms, the device
paths will be printed as "????????????" and the -s option will
not be able to select a device until someone implements the
underlying functionality.
Change-Id: I057d5d9f8c5bb72eddf5b8088aae110763f809d7
Signed-off-by: Scott Anderson <saa@android.com>
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* Add support for correctly handling subprocess termination in shell service (b/3400254 b/3482112 b/2249397)
- have a waitpid() track the subprocess, then notify the fdevent via a socket
- force an eof on the pty master in fdevent's new subproc handler.
- modify fdevent to force-read the pty after an exit.
* Migrate the "shell:blabla" handling to "#if !ADB_HOST" sections, where it
belongs.
* Fix the race around OOM adjusting.
- Do it in the child before exec() instead of the in the parent as the
child could already have started or not (no /proc/pid/... yet).
* Allow for multi-threaded D() invocations to not clobber each other.
- Allow locks across object files.
- Add lock within D()
- Make sure sysdesp init (mutex init also) is called early.
* Add some missing close(fd) calls
- Match similar existing practices near dup2()
* Add extra D() invocations related to FD handling.
* Warn about using debugging as stderr/stdout is used for protocol.
* Fix some errno handling and make D() correctly handle it.
* Add new adb trace_mask: services.
* Make fdevent_loop's handle BADFDs more gracefully (could occur some subproc closed its pts explicitely).
* Remove obsolete commandline args reported in help. (b/3509092)
Change-Id: I928287fdf4f1a86777e22ce105f9581685f46e35
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This is for http://b/3482112 "adb interactions with device causing test harness failures".
This reverts commit 69c5c4c45bd4f1575ae8bdba13795297be7deb8c.
Change-Id: I630bf2e04d2ecf0223bd2af4e87136754ff880d3
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* Handling of the subprocess and its FD.
This fixes http://b/3400254 "Many bugreports getting hung at the end in monkey"
- Start up a service thread that waits on the subprocess to terminate,
then closes the FD associated with it.
- Have the event handler select() with a timeout so that it can
detect the closed FD. Select() with no timeout does not return when an FD is closed.
- Have the event handler force a read on the closed FD to trigger the close sequence.
- Migrate the "shell:blabla" handling to "#if !ADB_HOST" sections.
* Fix the race around OOM adjusting.
- Do it in the child before exec() instead of the in the parent as the
child could already have started or not (no /proc/pid/... yet).
* Allow for multi-threaded D() invocations to not clobber each other.
- Allow locks across object files.
- Add lock within D()
* Add some missing close(fd) calls
- Match similar existing practices near dup2()
* Add extra D() invocations related to FD handling.
* Warn about using debugging as stderr/stdout is used for protocol.
Change-Id: Ie5c4a5e6bfbe3f22201adf5f9a205d32e069bf9d
Signed-off-by: JP Abgrall <jpa@google.com>
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communicate with.
adb devices will now list devices without adequate file system permissions in /dev/bus/usb as:
List of devices attached
???????????? no permissions
Signed-off-by: Mike Lockwood <lockwood@android.com>
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