Add verbosity to update width error

0364074c · Jorge Machado · 9bec167f · 0364074c · 0364074c
Commit 0364074c authored Oct 09, 2020 by Jorge Machado
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Showing with 3 additions and 2 deletions

fmc-dio-internal.c sw/kernel/fmc-dio-internal.c +1 -1

wr-dio-cmd.c sw/tools/wr-dio-cmd.c +2 -1

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--- a/sw/kernel/fmc-dio-internal.c
+++ b/sw/kernel/fmc-dio-internal.c
@@ -236,7 +236,7 @@ static int fmc_dio_int_cmd_update_width(struct fmc_dio *dev,
 		writel(1 << ch, base + dio.latch_reg);
 	}
 	else
-		return -1;
+		return -EINVAL;

 	return 0;
 }

--- a/sw/tools/wr-dio-cmd.c
+++ b/sw/tools/wr-dio-cmd.c
@@ -190,7 +190,8 @@ static int scan_width(int argc, char **argv)
 	}

 	if (ioctl(fd, PRIV_MEZZANINE_CMD, (unsigned long) cmd) < 0) {
-		fprintf(stderr, "%s: ioctl(PRIV_MEZZANINE_CMD(%s)): %s\n",
+		fprintf(stderr, "%s: ioctl(PRIV_MEZZANINE_CMD(%s)): %s.\n
+		The new pulse width must be coherent with the previously programmed period\n",
 			prgname, devname, strerror(errno));
 			return -1;
 	}