packages/utils/bossa/patches/101-PosixSerialPort-Call-tcdrain-to-write-serial-data.patch
Alexander Couzens dccdfa62c1 bossa: add patch to fix flash failures on serial
bossa only waited 1ms for the serial device instead calling
tcdrain().
Without this patch bossa is failing to flash a ATSAM3S4 8/10 times.
Patch has been submitted as PR#150 upstream.
https://github.com/shumatech/BOSSA/pull/150

Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
2021-11-09 08:43:51 +01:00

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Diff

From 0fd3078b4863002e5d384d7e453d668841414abe Mon Sep 17 00:00:00 2001
From: Kay Sievers <kay@vrfy.org>
Date: Wed, 13 Jan 2021 01:34:08 +0100
Subject: [PATCH] PosixSerialPort: Call tcdrain() to write serial data
GithubPR: 150
---
src/PosixSerialPort.cpp | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
--- a/src/PosixSerialPort.cpp
+++ b/src/PosixSerialPort.cpp
@@ -290,10 +290,7 @@ PosixSerialPort::put(int c)
void
PosixSerialPort::flush()
{
- // There isn't a reliable way to flush on a file descriptor
- // so we just wait it out. One millisecond is the USB poll
- // interval so that should cover it.
- usleep(1000);
+ tcdrain(_devfd);
}
bool