| 289604826b08179d25455cac86b670c3a4194aca |
|
11-May-2012 |
Mike Lockwood <lockwood@google.com> |
USB: gadget: f_audio_source: New gadget driver for audio output
This driver presents a standard USB audio class interface to the host
and an ALSA PCM device to userspace
Change-Id: If16b14a5ff27045f9cb2daaf1ae9195c5eeab7d0
Signed-off-by: Mike Lockwood <lockwood@google.com>
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| e40c16728ebd5af8992a90907fac99101e56e918 |
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26-Mar-2012 |
Mike Lockwood <lockwood@google.com> |
USB: gadget: f_accessory: Add support for HID input devices
Change-Id: I4f1452db32508382df52acdc47c0eb395ae328c7
Signed-off-by: Mike Lockwood <lockwood@google.com>
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| 8535ba66c9be82c52c19c014427e9dae4f2290e3 |
|
20-Jan-2012 |
Benoit Goby <benoit@android.com> |
usb: gadget: Fix usb string id allocation
Don't reset next_string_id every time the gadget is enabled, this makes
the next strings allocated overwrite strings allocated at probe time.
Instead, fix rndis not to allocate new string ids on every config bind.
Change-Id: Ied28ee416bb6f00c434c34176fe5b7f0dcb2b2d4
Signed-off-by: Benoit Goby <benoit@android.com>
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| 49c5e7668f29fddec74fec8504bdf6d9916a94d8 |
|
30-Mar-2012 |
Benoit Goby <benoit@android.com> |
usb: gadget: android: Add FunctionFS
Add support for FunctionFS (ffs) to implement usb functions in userspace.
The aliases property stores the list of functions that are implemented
using functionfs.
For example:
echo "adb,mtp" > /sys/class/android_usb/android0/f_ffs/aliases
Then when the function are enabled:
echo "adb,acm" > /sys/class/android_usb/android0/functions
Internally, ffs and acm will be used.
Change-Id: I44117b183d48a5a99ddbee3ef2cf8998be74598e
Signed-off-by: Benoit Goby <benoit@android.com>
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| dcefb2ee8d412a6fab43aabd4fb5668aab12ce04 |
|
29-May-2012 |
Benoit Goby <benoit@android.com> |
usb: gadget: android: Fix product name
Product names may contain spaces and scanf %s only matches the 1st word.
Use strlcpy instead.
Change-Id: Ie8703fea9775f7fc17fe615a42597ca3816d36b0
Signed-off-by: Benoit Goby <benoit@android.com>
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| 80ba14d22262dc9e21b0220925b493d38d8ab060 |
|
20-Mar-2012 |
Benoit Goby <benoit@android.com> |
usb: gadget: adb: Only enable the gadget when adbd is ready
When adb is enabled, only connect the gadget when adbd is ready. If adbd
dies or is restarted (e.g. "adb root"), the gadget is disconnected when
the adb device is close, and it is re-connected once adb re-open the
device.
- Add callbacks to adb, similar to FunctionFs callbacks, to notify the
gadget when the daemon is ready or closed.
- Refcount calls to android_enable/android_disable to enable the gadget
only once all the function daemons are ready.
- Add enable/disble to android_usb_function to notify the function when
it is added/removed from the list of enabled functions.
Change-Id: Id54ff85aec9cf8715c94b4f9bd6137a79ad58bfc
Signed-off-by: Benoit Goby <benoit@android.com>
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| cf3fc0646ba03b69a9c18bd430c10e20f25fecce |
|
19-Dec-2011 |
Benoit Goby <benoit@android.com> |
usb: gadget: accessory: Add Android Accessory function
USB accessory mode allows users to connect USB host hardware
specifically designed for Android-powered devices. The accessories
must adhere to the Android accessory protocol outlined in the
http://accessories.android.com documentation. This allows
Android devices that cannot act as a USB host to still interact with
USB hardware. When an Android device is in USB accessory mode, the
attached Android USB accessory acts as the host, provides power
to the USB bus, and enumerates connected devices.
Signed-off-by: Mike Lockwood <lockwood@android.com>
|
| 2b6862d1abb91b61c0c73fc0808e3d7d0141feea |
|
19-Dec-2011 |
Benoit Goby <benoit@android.com> |
usb: gadget: adb: Add ADB function
Android Debug Bridge (adb) is a command line tool that lets
users communicate with a Android-powered device. It is used
mainly to debug applications and tranfer files. f_adb implements
the transport layer between the ADB Server (on the host) and the
ADBD daemon (on the device).
Signed-off-by: Mike Lockwood <lockwood@android.com>
|
| f0fbc48125af7f02d1582e514f5b97a64266e643 |
|
19-Dec-2011 |
Benoit Goby <benoit@android.com> |
usb: gadget: mtp: Add MTP/PTP function
USB gadget function driver used by the Android framework to
implement the MTP and PTP protocols. It creates a character device
that provides an interface for fast transfer of files and
supports transferring files greater than 4GB.
Signed-off-by: Mike Lockwood <lockwood@android.com>
|
| 1e8ce155ca4507b2644d005d6b2b9e29b133881c |
|
12-Dec-2011 |
Benoit Goby <benoit@android.com> |
usb: gadget: Add Android Composite Gadget driver
The Android Gadget driver is a composite driver that allows
userspace to change at runtime the list of functions enabled in
its configuration and to configure these functions. It supports
multiple functions: acm, adb, rndis, mtp/ptp, mass storage and
accessory.
It is usually controlled by a daemon that changes the configuration
based on user settings. For example, rndis is enabled when the user
enables sharing the phone data connection and adb (Android Debug
Bridge) is only enabled when the user wants to debug applications
for security reasons.
As an example on how to use it, the following shell commands will
make the gadget disconnect from the host and make it be re-enumerated
as a composite with 1 rndis and 2 acm interfaces, and a different
product id:
echo 0 > /sys/class/android_usb/android0/enable
echo rndis,acm > /sys/class/android_usb/android0/functions
echo 2 > /sys/class/android_usb/android0/f_acm/instances
echo 2d01 > /sys/class/android_usb/android0/idProduct
echo 1 > /sys/class/android_usb/android0/enable
The driver requires a gadget controller that supports software
control of the D+ pullup and the controller driver must support
disabling the pullup during composite_bind.
Signed-off-by: Mike Lockwood <lockwood@android.com>
Signed-off-by: Benoit Goby <benoit@android.com>
|