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Only monitor recognized uevent devices.

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system_server can potentially monitor uevent devices that are
of no use to it. For instance, an accelerometer implementation
as uevents. This would cause the process to be busy when
unnecessary. If a device cannot be classified, don't monitor it.

Change-Id: I489cc453bdce7cb376102cba67a9ea470e13292d
This commit is contained in:
Sean McNeil 2010-06-23 16:00:37 +07:00 committed by Jean-Baptiste Queru
parent 5dda1d9245
commit 39f04ee5cf
1 changed files with 8 additions and 1 deletions
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9
libs/ui/EventHub.cpp
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@ -528,7 +528,6 @@ int EventHub::open_device(const char *deviceName)
if (strcmp(name, test) == 0) {
LOGI("ignoring event id %s driver %s\n", deviceName, test);
close(fd);
fd = -1;
return -1;
}
}
@ -737,6 +736,14 @@ int EventHub::open_device(const char *deviceName)
device->id, name, propName, keylayoutFilename);
}
// If the device isn't recognized as something we handle, don't monitor it.
if (device->classes == 0) {
LOGV("Dropping device %s %p, id = %d\n", deviceName, device, devid);
close(fd);
delete device;
return -1;
}
LOGI("New device: path=%s name=%s id=0x%x (of 0x%x) index=%d fd=%d classes=0x%x\n",
deviceName, name, device->id, mNumDevicesById, mFDCount, fd, device->classes);