Some devices fail to send USB string descriptors if you attempt to read more
than 255 bytes
Bug: 21871761
Change-Id: Id5b8865179f80523f0ad5b6028d49dd99db2b36b
USBDEVFS_DISCARDURB IOCTL call expects a pointer to the
the urb structure to be passed from userspace. LibusbHost
instead sends usbdevfs_urb**. Change this to usbdevfs_urb*.
Fixes Issue: https://code.google.com/p/android/issues/detail?id=74530
Change-Id: Ifb8a13857e1a9f62536f2a07c0965e9c419b7d4c
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>
usb_device_set_configuration is to support devices with multiple configurations
usb_device_set_interface supports switching between interfaces with alternate settings
Also moved zero string index checking to usb_device_get_string
Change-Id: I34610b25f135894a0cf752a33e5738d4314d7122
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
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
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>
