libusbhost can handle multiple inotify events at same time on Kit kat.
In original implementation, the function-level ret is assigned with
length of read and used for while loop.
if want to add a new watch for subdirectory,inotify_add_watch will
update the function-level ret with watch descriptor.
It impact on while loop to do exit.
Add local result to avoid it.
Change-Id: I101041ccfd54eaac14969a45e90ab2e49bdff578
Signed-off-by: Bo Huang <bo.b.huang@intel.com>
On some devices there is a slight delay between the creation of "/dev/bus"
and "/dev/bus/usb". Previously, the code assumed that both are created in the
same time which caused "watch_existing_subdirs" to fail and libusbhost to stop
working until the device is rebooted. The fix will setup an inotify event on the
creation of the "bus/usb" so it will not be missed once it's created.
Change-Id: I17f06dd167e61573307425e48898e12ebc954093
due to limitations of the droidboot OS used for POS,
there's a need for a static libusbhost library.
this permits to include libusbhost in droidboot
Change-Id: I0f0c07817ad19b773b466b69fd6e997877d41b34
Signed-off-by: Guillaume Ranquet <guillaumex.ranquet@intel.com>
Modify libusbhost to expose the inotify watch descriptor to clients
This modification permits clients to add the watch descriptor to
their polling loop so that they don't have to use a dedicated
thread only for libusbhost.
Change-Id: I615bfcd56beab978135034b228d4d93337351eab
Signed-off-by: Guillaume Ranquet <guillaumex.ranquet@intel.com>
Signed-off-by: Luc Piguet-Lacroix <lucx.piguet-lacroix@intel.com>
On some devices, /dev/bus/usb does not exist on boot, it is only created
when the otg port is in host mode. Use inotify to detect when /dev/bus/usb
is created and then start watching subdirectories.
Change-Id: Ic1472a5ea7a7118cdbb560cc7071ade9bcee753a
When a new bus is added, check for existing devices in the bus
directory, since devices may have been added before calling
inotify_add_watch.
Also add missing inotify_rm_watch calls.
Change-Id: Ie69fc995a3e8b18431099b252be86f0054fe5531
Otherwise the kernel will return an EINVAL error
Change-Id: I906472a4128eb26c5be7865142bc4a52464cf5f8
Bug: 4065217
Signed-off-by: Mike Lockwood <lockwood@android.com>
Also clean up and add timeout to control request transfer
Change-Id: Ibc2d8ac64d0fa90e0a23e6225ce2c49b23bb0d97
Signed-off-by: Mike Lockwood <lockwood@android.com>
This can be used to ask the kernel to disconnect its driver for a device
so usb_device_claim_interface() can claim it instead.
Also increased size of descriptor buffer and added some debugging logs
Change-Id: I4945196d957fb8493716eb9b7e5463c06b168ef1
Signed-off-by: Mike Lockwood <lockwood@android.com>
Add new usb_request struct to replace usb_endpoint, which is no longer needed.
Change-Id: Ia3637b3431a3597caced41bfec677ef0b044a453
Signed-off-by: Mike Lockwood <lockwood@android.com>
This allows converting from unique IDs to USB device names
Change-Id: I8e3b300790c01383aed8e3d4f547b54bcb7c2cd4
Signed-off-by: Mike Lockwood <lockwood@android.com>
We will use this for sharing USB file descriptors across address spaces via Binder
Change-Id: Iadbd3e0a4178f79d1d778fdfd5175f6fe0e2aaf5
Signed-off-by: Mike Lockwood <lockwood@android.com>
This can be used to eliminate race conditions in clients that operate immediately
on the currently connected device list.
Signed-off-by: Mike Lockwood <lockwood@android.com>
Change-Id: I14954b9fcc84239950ead6bdc1a0a888882c2226
This is to allow using a thread that is capable of calling through JNI to Java code
to report USB device attached/removed events.
Change-Id: Ia58592607a2c1f4357b31072044f5db5617d7f5b
Signed-off-by: Mike Lockwood <lockwood@android.com>
Supports access to Linux usbdevfs on both device and Linux host.
Change-Id: Ie88a5193be3ee715792b10b34b3da32ffc4ca57b
Signed-off-by: Mike Lockwood <lockwood@android.com>
