7 Enable support for various drivers needed on the Android platform
11 config ANDROID_BINDER_IPC
12 bool "Android Binder IPC Driver"
15 Binder is used in Android for both communication between processes,
16 and remote method invocation.
18 This means one Android process can call a method/routine in another
19 Android process, using Binder to identify, invoke and pass arguments
20 between said processes.
22 config ANDROID_BINDER_IPC_32BIT
23 bool "Use old 32-bit binder api"
27 Enable to support an old 32-bit Android user-space. Breaks the new
31 bool "Enable the Anonymous Shared Memory Subsystem"
35 The ashmem subsystem is a new shared memory allocator, similar to
36 POSIX SHM but with different behavior and sporting a simpler
39 It is, in theory, a good memory allocator for low-memory devices,
40 because it can discard shared memory units when under memory pressure.
43 tristate "Android log driver"
46 This adds support for system-wide logging using four log buffers.
55 Log reading and writing is performed via normal Linux reads and
56 optimized writes. This optimization avoids logging having too
57 much overhead in the system.
59 config ANDROID_TIMED_OUTPUT
60 bool "Timed output class driver"
63 config ANDROID_TIMED_GPIO
64 tristate "Android timed gpio driver"
65 depends on GPIOLIB && ANDROID_TIMED_OUTPUT
68 config ANDROID_LOW_MEMORY_KILLER
69 bool "Android Low Memory Killer"
72 Registers processes to be killed when memory is low
74 config ANDROID_LOW_MEMORY_KILLER_AUTODETECT_OOM_ADJ_VALUES
75 bool "Android Low Memory Killer: detect oom_adj values"
76 depends on ANDROID_LOW_MEMORY_KILLER
79 Detect oom_adj values written to
80 /sys/module/lowmemorykiller/parameters/adj and convert them
81 to oom_score_adj values.
83 config ANDROID_LOW_MEMORY_KILLER_AUTODETECT_OOM_ADJ_VALUES
84 bool "Android Low Memory Killer: detect oom_adj values"
85 depends on ANDROID_LOW_MEMORY_KILLER
88 Detect oom_adj values written to
89 /sys/module/lowmemorykiller/parameters/adj and convert them
90 to oom_score_adj values.
92 config ANDROID_INTF_ALARM_DEV
93 bool "Android alarm driver"
97 Provides non-wakeup and rtc backed wakeup alarms based on rtc or
98 elapsed realtime, and a non-wakeup alarm on the monotonic clock.
99 Also exports the alarm interface to user-space.
102 bool "Synchronization framework"
106 This option enables the framework for synchronization between multiple
107 drivers. Sync implementations can take advantage of hardware
108 synchronization built into devices like GPUs.
111 bool "Software synchronization objects"
115 A sync object driver that uses a 32bit counter to coordinate
116 syncrhronization. Useful when there is no hardware primitive backing
120 bool "Userspace API for SW_SYNC"
124 Provides a user space API to the sw sync object.
125 *WARNING* improper use of this can result in deadlocking kernel
126 drivers from userspace.
128 source "drivers/staging/android/ion/Kconfig"
130 source "drivers/staging/android/fiq_debugger/Kconfig"