See these for netlink usage (from userspace) to facilitate communication with kernel:
http://www.netmite.com/android/mydroid/external/bluez/utils/plugins/netlink.c http://blog.csdn.net/m346759541/archive/2011/01/12/6131220.aspx And this is the kernel component: http://www.netmite.com/android/mydroid/kernel/net/tipc/netlink.c And searching on my android git download: ./system/core/libsysutils/src/NetlinkEvent.cpp: #define LOG_TAG "NetlinkEvent" #include <sysutils/NetlinkEvent.h> const int NetlinkEvent::NlActionUnknown = 0; const int NetlinkEvent::NlActionAdd = 1; const int NetlinkEvent::NlActionRemove = 2; const int NetlinkEvent::NlActionChange = 3; NetlinkEvent::NetlinkEvent() { NetlinkEvent::~NetlinkEvent() { void NetlinkEvent::dump() { bool NetlinkEvent::decode(char *buffer, int size) { const char *NetlinkEvent::findParam(const char *paramName) { SLOGE("NetlinkEvent::FindParam(): Parameter '%s' not found", paramName); ./system/core/libsysutils/src/NetlinkListener.cpp: #include <sysutils/NetlinkEvent.h> NetlinkEvent *evt = new NetlinkEvent(); SLOGE("Error decoding NetlinkEvent"); ./system/vold/DirectVolume.cpp: #include <sysutils/NetlinkEvent.h> int DirectVolume::handleBlockEvent(NetlinkEvent *evt) { if (action == NetlinkEvent::NlActionAdd) { } else if (action == NetlinkEvent::NlActionRemove) { } else if (action == NetlinkEvent::NlActionChange) { void DirectVolume::handleDiskAdded(const char *devpath, NetlinkEvent *evt) { void DirectVolume::handlePartitionAdded(const char *devpath, NetlinkEvent *evt) { void DirectVolume::handleDiskChanged(const char *devpath, NetlinkEvent *evt) { void DirectVolume::handlePartitionChanged(const char *devpath, NetlinkEvent *evt) { void DirectVolume::handleDiskRemoved(const char *devpath, NetlinkEvent *evt) { void DirectVolume::handlePartitionRemoved(const char *devpath, NetlinkEvent *evt) { ./system/vold/NetlinkHandler.cpp: #include <sysutils/NetlinkEvent.h> void NetlinkHandler::onEvent(NetlinkEvent *evt) { ./system/vold/Volume.cpp: int Volume::handleBlockEvent(NetlinkEvent *evt) { ./system/vold/VolumeManager.cpp: #include <sysutils/NetlinkEvent.h> void VolumeManager::handleSwitchEvent(NetlinkEvent *evt) { void VolumeManager::handleUsbCompositeEvent(NetlinkEvent *evt) { void VolumeManager::handleBlockEvent(NetlinkEvent *evt) { ./system/netd/NetlinkHandler.cpp: #include <sysutils/NetlinkEvent.h> void NetlinkHandler::onEvent(NetlinkEvent *evt) { Perhaps these can be your examples? On Sat, Jun 18, 2011 at 1:27 AM, Pavan Savoy <pavan.sa...@gmail.com> wrote: > On Fri, Jun 17, 2011 at 9:13 AM, fan zhang <fzhang...@gmail.com> wrote: > > We developed an Android service and a kernel module. Android service > > and the Kernel module need to exchange data with each other. > > > > > > Following are the requirements for the IPC between user space and > > Kernel. > > > > 1. The communication should be secure. No authorized apps could not > > talk to that Kernel module. > > > > 2. IPC should have minimal impact to the Kernel operation (scheduling > > etc) > > > > 3. The communication should be duplex. > > > > Please give me some suggestions to setup that IPC. > > I've always liked netlink, However the genetlink library is kind of > missing from Android. > But it does suffice to all your requirements. > > > > Thanks > > > > Fan > > > > -- > > unsubscribe: android-kernel+unsubscr...@googlegroups.com > > website: http://groups.google.com/group/android-kernel > > > > -- > --Pavan Savoy > > -- > unsubscribe: android-kernel+unsubscr...@googlegroups.com > website: http://groups.google.com/group/android-kernel > -- Regards, Peter Teoh -- unsubscribe: android-kernel+unsubscr...@googlegroups.com website: http://groups.google.com/group/android-kernel
