Ticket #170 (closed defect: fixed)

Opened 12 years ago

Last modified 12 years ago

usbtty: sometimes input/output oddities

Reported by: laforge@… Owned by: laforge@…
Priority: high Milestone:
Component: u-boot Version: current svn head
Severity: minor Keywords:
Cc: buglog@… Blocked By:
Blocking: Estimated Completion (week):
HasPatchForReview: PatchReviewResult:


In the u-boot > host direction, if u-boot wants to send a lot of characters at
once (e.g. 'mtdparts' or 'nand dump'), sometimes bogus characters are sent to
the host. Must be related to usbtty circular buffer handling somehow.

Change History

comment:1 Changed 12 years ago by alphaone@…

usbtty also gets confused if it receives many characters at once (i.e. copy and
paste a command)

comment:2 Changed 12 years ago by elrond+bugzilla.openmoko.org@…

  • Summary changed from usbtty: sometimes bogus characters arrive to usbtty: sometimes input/output oddities

I can still see all these issues on r2040.

u-boot -> host:

I usually get replicated chars from other (previous) parts of the output.
My current best way to reproduce this: "help", then "date".

host -> u-boot:

Just tested:
If I paste 20 chars into u-boot, I only get the first 18 of them in return.

Note: I have retitled this bug to show more clearly, that it is about both
directions. If someone thinks, that these are unrelated, we can still file a
seperate bug.

comment:3 Changed 12 years ago by laforge@…

  • Status changed from new to closed
  • Resolution set to fixed

Fixed in svn rev 2875

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