lkml.org 
[lkml]   [2012]   [Oct]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: REGRESSION: usbdevfs: Use-scatter-gather-lists-for-large-bulk-transfers
Hej Henrik,

Henrik Rydberg wrote:
> commit 3d97ff63f8997761f12c8fbe8082996c6eeaba1a
> Author: Hans de Goede <hdegoede@redhat.com>
> Date: Wed Jul 4 09:18:03 2012 +0200
>
> usbdevfs: Use scatter-gather lists for large bulk transfers
>
> breaks an usb programming cable over here. The problem is reported as
> "bulk tranfer failed" [sic] by the tool, and bisection leads to this
> commit. Reverting on top of 3.6 solves it for me.
>
> I am happy to test alternatives.

In order to make full use of the new kernel commit you also need
changes in libusb, if the tool uses libusb, but I agree that the
kernel change must under no circumstance cause existing userland
software to regress.

What is the programming cable and software that uses it?


//Peter


\
 
 \ /
  Last update: 2012-10-10 23:21    [W:0.147 / U:0.608 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site