Re: Issue mounting USB mass-storage drive

[Jaromir Dolecek <jaromir.dolecek%gmail.com@localhost>]

Le 29 déc. 2018 à 20:50, Michael van Elst <mlelstv%serpens.de@localhost> a écrit :

nagelbh%SDF.ORG@localhost (Bruce Nagel) writes:

I'm guessing there isn't a simple means to use USB2 drivers and avoid this 

issue?  Nothing in the case is newer than 2012 so I don't need USB3 

support.

The USB3 case is worse. The only driver that better handles fragmented
memory by allowing multi-segment DMA is ehci and that's USB2.

How difficult it would be to change eg xhci to also allow mapping data into multiple segments ?

This looks like perfect small project for some willing volunteer- limited scope, and visible quality of life improvement for everyone. 

Jaromir