Hello, Thank you very much, setting usb-storage.delay_use=2 fixed the problem ! (it is still self-disconnecting with delay_use=3). Is there any risk setting delay_use to a low value ? Thanks again for your help. Panard > On Thu, 25 Feb 2010, Panard wrote: > > Hello, > > > > I've got a "CamSport" camera [1] that should act as an usb flash drive > > when connected to a computer. > > I'm using a powerbook 12" on linux kernel 2.6.32 (gentoo distribution). > > Looking at the dmesg shows that the camsport is disconnected just before > > usb-storage scans it. > > Hmm, you don't have CONFIG_PRINTK_TIME enabled, so we don't know how > much time elapsed between the disconnect and anything else. > > > Below is the complete usb debug when plugging the camsport. > > > > This is working well on Mac OS X (same laptop, same usb port), and I even > > tested it on Windows on other computers, it is always working > > (recognized as a usb storage). > > On every recent linux I tested (ubuntu, gentoo, etc.), this hardware does > > not work. > > > > Any hints? > > As you say, the camera disconnects itself. Who knows why? > > You might find it works better if you decrease the usb-storage scanning > delay. Add a line saying > > options usb-storage delay_use=0 > > to your /etc/modprobe.conf (or /etc/modprobe.d/local.conf, as the case > may be). > > Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
