* [PATCH] cdc-acm: fix BREAK rx code path adding necessary calls
@ 2021-03-11 13:37 Oliver Neukum
0 siblings, 0 replies; only message in thread
From: Oliver Neukum @ 2021-03-11 13:37 UTC (permalink / raw)
To: bruno.thomsen, gregKH, linux-usb; +Cc: Oliver Neukum
Counting break events is nice but we should actually report them to
the tty layer.
Fixes: 5a6a62bdb9257 ("cdc-acm: add TIOCMIWAIT")
Signed-off-by: Oliver Neukum <oneukum@suse.com>
---
drivers/usb/class/cdc-acm.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index b05207bc8265..fd2fce072985 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -326,8 +326,10 @@ static void acm_process_notification(struct acm *acm, unsigned char *buf)
acm->iocount.dsr++;
if (difference & ACM_CTRL_DCD)
acm->iocount.dcd++;
- if (newctrl & ACM_CTRL_BRK)
+ if (newctrl & ACM_CTRL_BRK) {
acm->iocount.brk++;
+ tty_insert_flip_char(&acm->port, 0, TTY_BREAK);
+ }
if (newctrl & ACM_CTRL_RI)
acm->iocount.rng++;
if (newctrl & ACM_CTRL_FRAMING)
--
2.26.2
^ permalink raw reply related [flat|nested] only message in thread
only message in thread, other threads:[~2021-03-11 13:38 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-03-11 13:37 [PATCH] cdc-acm: fix BREAK rx code path adding necessary calls Oliver Neukum
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.