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. Rebased on top of Linux 3.2-rc6 Patch 1 to 6 are small additions/fixes to the composite framework. Patch 7 adds the main gadget driver. Patch 8 to 10 add the mtp, adb and accessory functions. Benoit Goby (5): usb: gadget: composite: Add usb_remove_config usb: gadget: composite: Initialize config->interface usb: gadget: u_serial: Allow calling gserial_setup after init usb: gadget: rndis: Fix re-binding f_rndis usb: gadget: f_rndis: Set rndis vendor parameters Mike Lockwood (5): usb: gadget: Add variant of gether_setup to customize the device name usb: gadget: Add Android Composite Gadget driver usb: gadget: mtp: Add MTP/PTP function usb: gadget: adb: Add ADB function usb: gadget: accessory: Add Android Accessory function drivers/usb/gadget/Kconfig | 9 + drivers/usb/gadget/Makefile | 2 + drivers/usb/gadget/android.c | 1211 +++++++++++++++++++++++++++++++++++ drivers/usb/gadget/composite.c | 70 ++- drivers/usb/gadget/f_accessory.c | 796 +++++++++++++++++++++++ drivers/usb/gadget/f_adb.c | 611 ++++++++++++++++++ drivers/usb/gadget/f_mtp.c | 1283 ++++++++++++++++++++++++++++++++++++++ drivers/usb/gadget/f_rndis.c | 22 +- drivers/usb/gadget/u_ether.c | 22 +- drivers/usb/gadget/u_ether.h | 12 + drivers/usb/gadget/u_serial.c | 4 +- include/linux/usb/composite.h | 3 + include/linux/usb/f_accessory.h | 83 +++ include/linux/usb/f_mtp.h | 75 +++ 14 files changed, 4174 insertions(+), 29 deletions(-) create mode 100644 drivers/usb/gadget/android.c create mode 100644 drivers/usb/gadget/f_accessory.c create mode 100644 drivers/usb/gadget/f_adb.c create mode 100644 drivers/usb/gadget/f_mtp.c create mode 100644 include/linux/usb/f_accessory.h create mode 100644 include/linux/usb/f_mtp.h -- 1.7.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
