cros_ec_readmem 321 drivers/platform/chrome/cros_ec_chardev.c struct cros_ec_readmem s_mem = { }; cros_ec_readmem 35 include/linux/platform_data/cros_ec_chardev.h #define CROS_EC_DEV_IOCRDMEM _IOWR(CROS_EC_DEV_IOC, 1, struct cros_ec_readmem)