Bug 445211 - [RFE] DTR/DSR flow control
[RFE] DTR/DSR flow control
Status: CLOSED ERRATA
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: kernel (Show other bugs)
5.3
All Linux
urgent Severity medium
: rc
: ---
Assigned To: Aristeu Rozanski
Martin Jenner
: FutureFeature, Reopened, ZStream
Depends On:
Blocks: 445213 445215 KernelPrio5.3 466887 1051358
  Show dependency treegraph
 
Reported: 2008-05-05 11:03 EDT by Geert Jansen
Modified: 2014-01-10 01:31 EST (History)
10 users (show)

See Also:
Fixed In Version:
Doc Type: Enhancement
Doc Text:
Story Points: ---
Clone Of:
Environment:
Last Closed: 2009-01-20 14:33:55 EST
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---


Attachments (Terms of Use)
first test patch (latest git based) (10.70 KB, patch)
2008-06-04 11:46 EDT, Aristeu Rozanski
no flags Details | Diff
first test patch (7.43 KB, patch)
2008-06-04 11:49 EDT, Aristeu Rozanski
no flags Details | Diff
test case (5.04 KB, text/plain)
2008-06-13 10:49 EDT, Aristeu Rozanski
no flags Details
updated test case (6.17 KB, text/plain)
2008-06-19 10:41 EDT, Aristeu Rozanski
no flags Details
[1/2] backport termiox support (7.67 KB, patch)
2008-08-28 17:17 EDT, Aristeu Rozanski
no flags Details | Diff
[2/2] add support for DTR/DSR flow control (9.33 KB, patch)
2008-08-28 17:17 EDT, Aristeu Rozanski
no flags Details | Diff
updated test case (8.97 KB, text/x-csrc)
2008-08-28 17:18 EDT, Aristeu Rozanski
no flags Details

  None (edit)
Description Geert Jansen 2008-05-05 11:03:44 EDT
Description of problem:

DTR/DSR flow control is not implemented in the serial driver in the Linux kernel.

Version-Release number of selected component (if applicable):

kernel-2.6.18-84.el5

Additional info:

DTR/DSR is often used for serial printers and other serial hardware (with the
exception of modems).
Comment 1 Linda Wang 2008-05-05 21:40:52 EDT

*** This bug has been marked as a duplicate of 445215 ***
Comment 3 Linda Wang 2008-05-06 10:23:13 EDT
bug 445215 for kernel component
bug 445213 for coreutils component
Comment 4 Aristeu Rozanski 2008-06-04 11:46:03 EDT
Created attachment 308359 [details]
first test patch (latest git based)

made some tests between a Windows box and a machine running this patch, both
sides using a custom application.
Comment 5 Aristeu Rozanski 2008-06-04 11:49:33 EDT
Created attachment 308360 [details]
first test patch

gah, forgot to remove the debug crap.
Comment 6 Aristeu Rozanski 2008-06-13 10:49:49 EDT
Created attachment 309219 [details]
test case

test case written using the sample code found on
https://bugzilla.redhat.com/attachment.cgi?id=309183 (BZ#445215, comment 23)
Comment 7 Aristeu Rozanski 2008-06-19 10:41:33 EDT
Created attachment 309849 [details]
updated test case

updated test case
Comment 9 Aristeu Rozanski 2008-07-14 10:41:01 EDT
Any results from the tests?
Comment 12 Aristeu Rozanski 2008-08-28 17:17:15 EDT
Created attachment 315299 [details]
[1/2] backport termiox support
Comment 13 Aristeu Rozanski 2008-08-28 17:17:49 EDT
Created attachment 315300 [details]
[2/2] add support for DTR/DSR flow control
Comment 14 Aristeu Rozanski 2008-08-28 17:18:15 EDT
Created attachment 315301 [details]
updated test case
Comment 16 Don Zickus 2008-09-10 16:13:48 EDT
in kernel-2.6.18-110.el5
You can download this test kernel from http://people.redhat.com/dzickus/el5
Comment 19 Don Zickus 2008-09-25 17:16:43 EDT
Patch wasn't complete and was missing a mutex lock.  Moving to POST state to pick up for next kernel spin.
Comment 21 Don Zickus 2008-10-06 11:55:53 EDT
in kernel-2.6.18-118.el5
You can download this test kernel from http://people.redhat.com/dzickus/el5
Comment 30 errata-xmlrpc 2009-01-20 14:33:55 EST
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHSA-2009-0225.html

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