On 8/23/07, David Corking <[EMAIL PROTECTED]> wrote: > On 8/22/07, Mike Montour wrote: > > David Corking wrote: > > > > > Unfortunately, when I tried on Monday, scp exited without an error > > > (that I recall) at 368k of a 3M file. Today the whole 3M file > > > transferred (and the md5 fingerprints match.) > > > > There's a bug filed for "I/O errors on heavy microSD writes". Is that > > what you experienced? > > http://bugzilla.openmoko.org/cgi-bin/bugzilla/show_bug.cgi?id=677 > > Almost certainly yes: well spotted, Mike. Unfortunately I was not > paying attention at the time so I did not keep any logs. > > On 8/23/07, Mikko Rauhala wrote: > > to, 2007-08-23 kello 18:44 +1200, Paul Eggleton kirjoitti: > > > If possible, I'm thinking it would be better to use the usb gadget storage > > > driver to provide a usb storage device on the Neo and point it at the card > > > (after mounting). Then both the phone and the PC can access the card at > > > the > > > same time. > > > > Nuh-uh. If two systems access a filesystem (not designed spesifically > > for that) on a block level simultaneously, you'll get horrible trouble. > > > > Better to serve up Neo's card over usbnet. SFTP is there already; maybe > > a case could be made for Samba, but it would take some room... > > I wonder how embedded music players provide a mass storage interface. > Maybe they use the dangerous hack that Paul suggested?
I did some googling: http://www.linux-usb.org/gadget/file_storage.html so I am able to guess the answer to my own question. Music players I have tried _stop_playing_ when connected to a USB host (similarly with digital cameras.) Then linux-usb gadget is safe. This may not be a very practical use case for a smartphone however. A smartphone would need an on-screen button to unmount the microSD card and remount it as a storage gadget. I would be willing to give up screen real estate for that, but I expect others would not. -- David Corking, Project Manager Corking Project Limited http://www.corking-project.co.uk/ "Total Project Management for system integration" Tel: +44-7863-120641 Fax: +44-7863-440993
