On Wed, Jan 31, 2024 at 02:14:26PM +0000, Weizhao Ouyang wrote:
The 'rng list' command probes all RNG devices and list those devices that are successfully probed. Also update the help info.
Reviewed-by: Heinrich Schuchardt xypron.glpk@gmx.de Signed-off-by: Weizhao Ouyang o451686892@gmail.com
Reviewed-by: Matthias Brugger mbrugger@suse.com
cmd/rng.c | 23 ++++++++++++++++++----- 1 file changed, 18 insertions(+), 5 deletions(-)
diff --git a/cmd/rng.c b/cmd/rng.c index 52f722c7af..b073a6c849 100644 --- a/cmd/rng.c +++ b/cmd/rng.c @@ -19,6 +19,22 @@ static int do_rng(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) struct udevice *dev; int ret = CMD_RET_SUCCESS;
- if (argc == 2 && !strcmp(argv[1], "list")) {
int idx = 0;uclass_foreach_dev_probe(UCLASS_RNG, dev) {idx++;printf("RNG #%d - %s\n", dev->seq_, dev->name);}if (!idx) {log_err("No RNG device\n");return CMD_RET_FAILURE;}return CMD_RET_SUCCESS;- }
- switch (argc) { case 1: devnum = 0;
@@ -56,12 +72,9 @@ static int do_rng(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) return ret; }
-U_BOOT_LONGHELP(rng,
- "[dev [n]]\n"
- " - print n random bytes(max 64) read from dev\n");
U_BOOT_CMD( rng, 3, 0, do_rng, "print bytes from the hardware random number generator",
- rng_help_text
- "list - list all the probed rng devices\n"
- "rng [dev] [n] - print n random bytes(max 64) read from dev\n"
);
2.39.2