Many UART drivers create TTY devices with names like ttymxc%d or
ttyAPP%d. Instead of listing all of them in the list of known prefixes,
just accept any TTY device when no prefix matches.
Signed-off-by: Matthias Schiffer <matthias.schif...@ew.tq-group.com>
---
src/bootlogd.c | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/src/bootlogd.c b/src/bootlogd.c
index 787db87..17198aa 100644
--- a/src/bootlogd.c
+++ b/src/bootlogd.c
@@ -212,6 +212,22 @@ int findpty(int *master, int *slave, char *name)
return 0;
}
+
+static int istty(const char *dev)
+{
+ int fd, ret;
+
+ fd = open(dev, O_RDONLY|O_NONBLOCK);
+ if (fd < 0)
+ return 0;
+
+ ret = isatty(fd);
+
+ close(fd);
+
+ return ret;
+}
+
/*
* See if a console taken from the kernel command line maps
* to a character device we know about, and if we can open it.
@@ -239,6 +255,13 @@ int isconsole(char *s, char *res, int rlen)
}
}
}
+
+ /* Fallback: accept any TTY device */
+ snprintf(res, rlen, "/dev/%s", s);
+ if ((q = strchr(res, ',')) != NULL) *q = 0;
+ if (istty(res))
+ return 1;
+
return 0;
}
--
2.17.1
