menu "Android" config ANDROID bool "Android Drivers" default N ---help--- Enable support for various drivers needed on the Android platform if ANDROID config ASHMEM bool "Enable the Anonymous Shared Memory Subsystem" default n depends on SHMEM ---help--- The ashmem subsystem is a new shared memory allocator, similar to POSIX SHM but with different behavior and sporting a simpler file-based API. It is, in theory, a good memory allocator for low-memory devices, because it can discard shared memory units when under memory pressure. config ANDROID_LOGGER tristate "Android log driver" default n ---help--- This adds support for system-wide logging using four log buffers. These are: 1: main 2: events 3: radio 4: system Log reading and writing is performed via normal Linux reads and optimized writes. This optimization avoids logging having too much overhead in the system. config LOGCAT_SIZE int "Adjust android log buffer sizes" default 256 depends on ANDROID_LOGGER help Set logger buffer size. Enter a number greater than zero. Any value less than 256 is recommended. Reduce value to save kernel static memory size. config ANDROID_TIMED_OUTPUT bool "Timed output class driver" default y config ANDROID_TIMED_GPIO tristate "Android timed gpio driver" depends on GPIOLIB && ANDROID_TIMED_OUTPUT default n config ANDROID_LOW_MEMORY_KILLER bool "Android Low Memory Killer" default n ---help--- Registers processes to be killed when memory is low config ANDROID_LOW_MEMORY_KILLER_AUTODETECT_OOM_ADJ_VALUES bool "Android Low Memory Killer: detect oom_adj values" depends on ANDROID_LOW_MEMORY_KILLER default y ---help--- Detect oom_adj values written to /sys/module/lowmemorykiller/parameters/adj and convert them to oom_score_adj values. config ANDROID_INTF_ALARM_DEV bool "Android alarm driver" depends on RTC_CLASS default n ---help--- Provides non-wakeup and rtc backed wakeup alarms based on rtc or elapsed realtime, and a non-wakeup alarm on the monotonic clock. Also exports the alarm interface to user-space. config SYNC bool "Synchronization framework" default n select ANON_INODES help This option enables the framework for synchronization between multiple drivers. Sync implementations can take advantage of hardware synchronization built into devices like GPUs. config SW_SYNC bool "Software synchronization objects" default n depends on SYNC help A sync object driver that uses a 32bit counter to coordinate syncrhronization. Useful when there is no hardware primitive backing the synchronization. config SW_SYNC_USER bool "Userspace API for SW_SYNC" default n depends on SW_SYNC help Provides a user space API to the sw sync object. *WARNING* improper use of this can result in deadlocking kernel drivers from userspace. config ONESHOT_SYNC bool "One shot sync objects" depends on SYNC help This sync driver provides a way to create sync objects that may be signaled by userspace. Unlike other sync objects, the sync objects created by this driver may be signaled in any order without changing the state of other sync objects on the timeline. config ONESHOT_SYNC_USER bool "Userspace API for ONESHOT_SYNC" depends on SYNC help Provide a userspace API for creating oneshot sync objects. source "drivers/staging/android/ion/Kconfig" source "drivers/staging/android/fiq_debugger/Kconfig" endif # if ANDROID endmenu