keychords.cpp: O_RDWR -> O_RDONLY

The keycodes functionality in init only needs to read key events. It
doesn't need to inject key events. A read-only file descriptor is
perfectly sufficient.

Test: pressing volume-up/volume-down/power still generates a bugreport
Change-Id: Iecbf21c544914334006ac6258c03df390f417e80

parent 3a6c7519

init/keychords.cpp

+1 −1

Original line number	Diff line number	Diff line
		@@ -192,7 +192,7 @@ bool Keychords::GeteventEnable(int fd) {

		void Keychords::GeteventOpenDevice(const std::string& device) {
		if (registration_.count(device)) return;
		auto fd = TEMP_FAILURE_RETRY(::open(device.c_str(), O_RDWR \| O_CLOEXEC));
		auto fd = TEMP_FAILURE_RETRY(::open(device.c_str(), O_RDONLY \| O_CLOEXEC));
		if (fd == -1) {
		PLOG(ERROR) << "Can not open " << device;
		return;