Thanks for your advices. I check the options with a "cat .config | grep CONFIG_USB_SUSPEND" ; I get : # CONFIG_USB_SUSPEND is not set
But, with the option USB_AUTOSUSPEND_DELAY, I obtain nothing. Do you think that's normal ? So, I'll try to do what you said with the recompilation of the kernel. Thibaud. Alan Stern a écrit : > On Mon, 12 Feb 2007, Thibaud Hulin wrote: > >> Hello! >> >> I've been a little longer, but I could recompiled my kernel with the >> debug USB support. > >> And this is the result of dmesg command : > ... >> [ 200.748000] usb 1-1: usb auto-suspend >> [ 205.920000] usb 1-1: usb auto-resume >> [ 205.968000] usb 1-1: finish resume >> [ 207.972000] usb 1-1: usb auto-suspend >> [ 211.264000] usb 1-1: usb auto-resume >> [ 211.312000] usb 1-1: finish resume >> [ 214.620000] usb 1-1: usb auto-suspend >> [ 214.972000] usb 1-1: usb auto-resume >> [ 215.096000] usb 1-1: finish resume >> [ 224.940000] usb 1-1: usb auto-suspend >> [ 228.864000] usb 1-1: usb auto-resume >> [ 228.912000] usb 1-1: finish resume >> [ 232.348000] usb 1-1: usb auto-suspend >> [ 238.788000] usb 1-1: usb auto-resume >> [ 238.836000] usb 1-1: finish resume >> [ 238.836000] usb 1-1: uhci_result_common: failed with status 440000 >> [ 238.844000] usb 1-1: gone after usb resume? status -71 >> [ 238.848000] usb 1-1: can't resume, status -71 >> [ 238.848000] usb 1-1: USB disconnect, address 2 > > The dongle gets suspended when it's not being used. Apparently you run > some program that uses the dongle at 5- or 10-second intervals; this > causes the device to wake up and then be suspended again. It looks like > the dongle can't handle more than a few cycles of this -- after 5 cycles > it stopped working entirely. > > You can change the autosuspend delay by altering the value of > USB_AUTOSUSPEND_DELAY in the kernel source file drivers/usb/core/usb.h. > For example, setting it to (HZ*60) will cause the suspend to happen only > after 60 seconds of inactivity. > > Or you can prevent USB devices from being suspended entirely by turning > off the CONFIG_USB_SUSPEND setting. > > Alan Stern > > > ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier. Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
