On 11/29/22 21:59, Zhou, Jie2X wrote: > hi, > >> Are you sure you have the proper kernel code loaded with the test >> firmware code that creates this sysfs file? Without that, this test >> will not work. > I checked following config options, and they all enabled. > > tools/testing/selftests/firmware/config > CONFIG_TEST_FIRMWARE=y > CONFIG_FW_LOADER=y > CONFIG_FW_LOADER_USER_HELPER=y > CONFIG_IKCONFIG=y > CONFIG_IKCONFIG_PROC=y > CONFIG_FW_UPLOAD=y > > best regards, Nevertheless, the error message you reported in your first email indicates that the test_firmware device may not be present. Did you verify that the running system reports the expected configs? What does the following command show? zgrep CONFIG_TEST_FIRMWARE /proc/config.gz - Russ
