From ddcc8f9f4ed6d8a57107afe4e40d63c794aa59ae Mon Sep 17 00:00:00 2001 From: Daniel Golle Date: Tue, 13 Jun 2023 15:32:15 +0100 Subject: package: add fitblk util to release /dev/fit* devices Add minimalistic tool to allow releasing /dev/fit* devices which is needed on sysupgrade when using the fitblk driver. The package is hidden in menuconfig, it should only be selected by adding it to the default package selection of boards using it. Signed-off-by: Daniel Golle --- package/utils/fitblk/src/fitblk.c | 45 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 package/utils/fitblk/src/fitblk.c (limited to 'package/utils/fitblk/src/fitblk.c') diff --git a/package/utils/fitblk/src/fitblk.c b/package/utils/fitblk/src/fitblk.c new file mode 100644 index 0000000000..059ba6098c --- /dev/null +++ b/package/utils/fitblk/src/fitblk.c @@ -0,0 +1,45 @@ +// SPDX-License-Identifier: GPL-2.0-only +#include +#include +#include +#include +#include +#include +#include + +static int fitblk_release(char *device) +{ + int fd, ret; + + fd = open(device, O_RDONLY); + if (fd == -1) + return errno; + + ret = ioctl(fd, FITBLK_RELEASE, NULL); + close(fd); + + if (ret == -1) + return errno; + + return 0; +} + +int main(int argc, char *argp[]) +{ + int ret; + + if (argc != 2) { + fprintf(stderr, "Release uImage.FIT sub-image block device\n"); + fprintf(stderr, "Syntax: %s /dev/fitXXX\n", argp[0]); + return -EINVAL; + } + + ret = fitblk_release(argp[1]); + if (ret) + fprintf(stderr, "fitblk: error releasing %s: %s\n", argp[1], + strerror(ret)); + else + fprintf(stderr, "fitblk: %s released\n", argp[1]); + + return ret; +} -- cgit v1.2.3