Forwarded to TI Sitara processors Linux\USB support, waiting for good news. Sensitive to USB power levels\input noise?
On 22 October 2015 at 17:00, Davide Birra <[email protected]> wrote: > Same problem here. BBB keeps on disconnecting my USB devices. > > > Il giorno martedì 20 ottobre 2015 12:56:11 UTC+2, Guido Paoluzi Cusani ha > scritto: >> >> My communication link: >> BBB USB <-> USB2514B based USB hub <-> FTDI FT232 >> Abruptly fails for no evident reason (possibly EMI or other induced >> noise... there is a vast evidence ( better say a lot of rumors ) of the BBB >> USB being very sensitive all over the web). >> uname -r output: >> 4.1.10-ti-r21 >> dmesg output: >> [ 4951.213705] usb 1-1.1: USB disconnect, device number 3 >> [ 4951.215742] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now >> disconnected from ttyUSB0 >> [ 4951.216492] ftdi_sio 1-1.1:1.0: device disconnected >> [ 4951.458827] usb 1-1.1: new full-speed USB device number 5 using >> musb-hdrc >> [ 4951.538810] usb 1-1.1: device descriptor read/64, error -32 >> [ 4951.728815] usb 1-1.1: device descriptor read/64, error -32 >> [ 4951.918801] usb 1-1.1: new full-speed USB device number 6 using >> musb-hdrc >> [ 4951.998947] usb 1-1.1: device descriptor read/64, error -32 >> [ 4952.188807] usb 1-1.1: device descriptor read/64, error -32 >> [ 4952.378887] usb 1-1.1: new full-speed USB device number 7 using >> musb-hdrc >> [ 4952.798847] usb 1-1.1: device not accepting address 7, error -32 >> [ 4952.898825] usb 1-1.1: new full-speed USB device number 8 using >> musb-hdrc >> [ 4953.318766] usb 1-1.1: device not accepting address 8, error -32 >> [ 4953.325078] usb 1-1-port1: unable to enumerate USB device >> the link doesn't recover unless the hub goes through a hardware reset or >> a power OFF\ON cycle; >> The hub appears to go in "Suspended Mode" when the problem arises. >> I am wondering: >> there is a Sitara Linux MUSB Issue with the USB_RESUME in AMSDK >> 08.00.00.00: is the kernel 4.1.10-ti-r21 incorporating the workaround? >> Any way I can software reset the hub from Linux? >> Any hint on what is happening? >> Thanks in advance for any help on this. >> >> Guido >> >> >> >> >> -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to a topic in the > Google Groups "BeagleBoard" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/beagleboard/FAX9OLvLsdg/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
