Re: DMA problem in net2280?
Alan Stern <[email protected]>
| Newsgroups | gmane.linux.usb.devel |
|---|---|
| Message-ID | <[email protected]> |
On Thu, 16 Aug 2007, David Brownell wrote: > On Thursday 16 August 2007, Alan Stern wrote: > > Dave: > > > > While doing some testing today, I found that net2280 wasn't working > > right. When DMA is enabled, the bulk-OUT data buffers presented to > > g_file_storage contain nothing but 0x6b bytes. With DMA disabled > > everything works okay, so this definitely has to be something wrong in > > the controller driver. > > You surely know that POISON_FREE is 0x6b... > > Doesn't need to be the controller driver. Something else could > be making trouble. I tracked it down; there was a bug in the g_file_storage part of your remove_usb_ep_*_buffer patch. You must not have tested it. A patch to fix it follows. Alan Stern ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel