Bug 78962
Summary: | USB serial driver doesn't support DCD correcty | ||
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Product: | [Retired] Red Hat Linux | Reporter: | MIchael Kolmodin <michael> |
Component: | kernel | Assignee: | Pete Zaitcev <zaitcev> |
Status: | CLOSED CURRENTRELEASE | QA Contact: | |
Severity: | medium | Docs Contact: | |
Priority: | medium | ||
Version: | 7.2 | ||
Target Milestone: | --- | ||
Target Release: | --- | ||
Hardware: | i686 | ||
OS: | Linux | ||
URL: | n/a | ||
Whiteboard: | |||
Fixed In Version: | Doc Type: | Bug Fix | |
Doc Text: | Story Points: | --- | |
Clone Of: | Environment: | ||
Last Closed: | 2004-09-30 15:40:15 UTC | Type: | --- |
Regression: | --- | Mount Type: | --- |
Documentation: | --- | CRM: | |
Verified Versions: | Category: | --- | |
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
Cloudforms Team: | --- | Target Upstream Version: | |
Embargoed: | |||
Bug Depends On: | |||
Bug Blocks: | 78984 |
Description
MIchael Kolmodin
2002-12-03 23:28:40 UTC
Digging around this, the picture gets more complicated. However, one thing is sure: kermit never "sees" the CD (carrier detect) signal; it refuses to connect saying there is no carrier even if it's there. And if it can't detect the CD, of course the driver can't signal if the carrier drops. I think kermit is a pretty good way to exercise the stty interface Changing summary to reflect this. New status: - I'm still uncertain about the DTR handling; however, using stty it seems to do the Right Thing. - I havn't really tested the RTS/CTS handling, cant really say there is a bug, just this feeling. RTS is asserted correctly, though. - DCD is definitely a bug. - Setserial is really a separate issue, I'll file a new bug for this This is pretty much a Wontfix material, I'm sorry to say. The usbserial is a mess, and pl2303 is worse. One side note is that DTR is not supposed to stay up across close (if the last process was gone), not even with clocal. Otherwise, how are you going to reset modems? The rest is a bunch of plain bugs. Currently, USB adapters are useful to connect Palm organizers only. Thanks for the bug report. However, Red Hat no longer maintains this version of the product. Please upgrade to the latest version and open a new bug if the problem persists. The Fedora Legacy project (http://fedoralegacy.org/) maintains some older releases, and if you believe this bug is interesting to them, please report the problem in the bug tracker at: http://bugzilla.fedora.us/ |