The following reply was made to PR usb/65769; it has been noted by GNATS.
From: Rudolf Cejka <[EMAIL PROTECTED]>
To: Volker <[EMAIL PROTECTED]>
Cc: [EMAIL PROTECTED]
Subject: Re: usb/65769: [ucom] Call to tcflush(x, TCIFLUSH) stops input on
usb-serial forever
Date: Thu, 14 Feb 2008 10:58:53 +0100
Volker wrote (2008/02/14):
> just came across your really old PR and am wondering if this is still
> an issue with recent releases (6.x/7.0)?
Uff, it is really very long time and I could not easily repeat exactly
the same steps with remote kernel debugging, however I tried to connect
two FreeBSD 6.2-STABLEs using identical USB-to-Serial converter with
self-patched tip forcing calling tcflush(fd, TCIFLUSH) and/or
tcflush(fd, TCIOFLUSH) and it seems that it is working now. On the
other side, please look at cvsweb, src/sys/dev/usb/ucom.c, revisions
1.56 (3 years ago) and 1.64 (7 months ago), where the first change tries
to fix this PR and the second tries to fix another consequent problem,
however I hope that the solution survived and the problem is solved even
in the most current sources, so you can close this PR.
Regards.
--
Rudolf Cejka <cejkar at fit.vutbr.cz> http://www.fit.vutbr.cz/~cejkar
Brno University of Technology, Faculty of Information Technology
Bozetechova 2, 612 66 Brno, Czech Republic
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