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Linux/drivers/staging/android/Kconfig

  1 menu "Android"
  2 
  3 if ANDROID
  4 
  5 config ASHMEM
  6         bool "Enable the Anonymous Shared Memory Subsystem"
  7         default n
  8         depends on SHMEM
  9         ---help---
 10           The ashmem subsystem is a new shared memory allocator, similar to
 11           POSIX SHM but with different behavior and sporting a simpler
 12           file-based API.
 13 
 14           It is, in theory, a good memory allocator for low-memory devices,
 15           because it can discard shared memory units when under memory pressure.
 16 
 17 config ANDROID_LOGGER
 18         tristate "Android log driver"
 19         default n
 20         ---help---
 21           This adds support for system-wide logging using four log buffers.
 22 
 23           These are:
 24 
 25               1: main
 26               2: events
 27               3: radio
 28               4: system
 29 
 30           Log reading and writing is performed via normal Linux reads and
 31           optimized writes. This optimization avoids logging having too
 32           much overhead in the system.
 33 
 34 config ANDROID_TIMED_OUTPUT
 35         bool "Timed output class driver"
 36         default y
 37 
 38 config ANDROID_TIMED_GPIO
 39         tristate "Android timed gpio driver"
 40         depends on GPIOLIB && ANDROID_TIMED_OUTPUT
 41         default n
 42 
 43 config ANDROID_LOW_MEMORY_KILLER
 44         bool "Android Low Memory Killer"
 45         ---help---
 46           Registers processes to be killed when memory is low
 47 
 48 config ANDROID_INTF_ALARM_DEV
 49         tristate "Android alarm driver"
 50         depends on RTC_CLASS
 51         default n
 52         ---help---
 53           Provides non-wakeup and rtc backed wakeup alarms based on rtc or
 54           elapsed realtime, and a non-wakeup alarm on the monotonic clock.
 55           Also exports the alarm interface to user-space.
 56 
 57 config SYNC
 58         bool "Synchronization framework"
 59         default n
 60         select ANON_INODES
 61         select DMA_SHARED_BUFFER
 62         ---help---
 63           This option enables the framework for synchronization between multiple
 64           drivers.  Sync implementations can take advantage of hardware
 65           synchronization built into devices like GPUs.
 66 
 67 config SW_SYNC
 68         bool "Software synchronization objects"
 69         default n
 70         depends on SYNC
 71         ---help---
 72           A sync object driver that uses a 32bit counter to coordinate
 73           syncrhronization.  Useful when there is no hardware primitive backing
 74           the synchronization.
 75 
 76 config SW_SYNC_USER
 77         bool "Userspace API for SW_SYNC"
 78         default n
 79         depends on SW_SYNC
 80         ---help---
 81           Provides a user space API to the sw sync object.
 82           *WARNING* improper use of this can result in deadlocking kernel
 83           drivers from userspace.
 84 
 85 source "drivers/staging/android/ion/Kconfig"
 86 
 87 endif # if ANDROID
 88 
 89 endmenu

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