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| author | Pali Rohár <pali@kernel.org> | 2021-09-24 23:07:08 +0200 |
|---|---|---|
| committer | Stefan Roese <sr@denx.de> | 2021-10-01 11:07:13 +0200 |
| commit | c704e0e1df93328a336780c8e3dd87ad44b4f351 (patch) | |
| tree | 16a55f5358017c65983c987b5ba953794138df49 | |
| parent | 99a3d02370b6b526594ee73eb26d39e8d8ced8d3 (diff) | |
| download | u-boot-c704e0e1df93328a336780c8e3dd87ad44b4f351.zip u-boot-c704e0e1df93328a336780c8e3dd87ad44b4f351.tar.gz u-boot-c704e0e1df93328a336780c8e3dd87ad44b4f351.tar.bz2 | |
tools: kwboot: Fix initializing tty device
Retrieve current terminal settings via tcgetattr(), set to raw mode with
cfmakeraw(), enable receiver via CREAD and ignore modem control lines
via CLOCAL.
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
| -rw-r--r-- | tools/kwboot.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/tools/kwboot.c b/tools/kwboot.c index d8b9507..fc83161 100644 --- a/tools/kwboot.c +++ b/tools/kwboot.c @@ -648,11 +648,12 @@ kwboot_open_tty(const char *path, int baudrate) if (fd < 0) goto out; - memset(&tio, 0, sizeof(tio)); - - tio.c_iflag = 0; - tio.c_cflag = CREAD|CLOCAL|CS8; + rc = tcgetattr(fd, &tio); + if (rc) + goto out; + cfmakeraw(&tio); + tio.c_cflag |= CREAD|CLOCAL; tio.c_cc[VMIN] = 1; tio.c_cc[VTIME] = 10; |