Hi, I have three usb SD memory card readers/writers attached to linux box. I am trying to setup a configuration which will be able to write data on all three (and more in near future - e.g. 7 ) SD cards simultaneously. Everything works fine with just only one card I think.
When I am trying to write at one moment to 2-3 SD Cards strange things happen. Sometimes it works, but sometimes it gives me many "reset high speed USD device using ehci_hcd and address ..." in the logs, sometimes even "lost page write due to I/O error..." (but this one not too offen) and it blocks all activity on those cards to 1-2 minutes (also hal events - inserting and removing cards are dalayed). I have tryied many diffrent configurations on two different PCs, with and without USB hub, on RHEL 4.x (kernel 2.6.9) and Knoppix (kernel 2.6.17). Am I doing something wrong? What should I check or try? Hardware, newer kernel? Has anyone tried such things? Thanks. ps. Mentioned SD Cards have max speed ~4.0 MB/s. -- <> Netinfo: Product Development <> tel: 32.3460490 fax: 32.3460492 <> http://www.netinfo.pl/ <> JID: [EMAIL PROTECTED] ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Linux-usb-users@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
