With microcom - you can keep sending AT commands - no response from the device (nothing echoed on the screen) and wireshark shows only URB_BULK out - nothing coming back from the device. With picocom after sending an "A" no other transmission can be seen on wireshark Wondering if there's any way in which USB transmissions can be slowed down to see if that makes a difference. Or is there anything that can be adjusted in cdc-acm.c to change the way the termio is initialized. Regards Ashok On Sun, Jun 3, 2012 at 3:22 PM, Oliver Neukum <oliver@xxxxxxxxxx> wrote: > Am Sonntag, 3. Juni 2012, 21:15:35 schrieb Ashok Rao: >> I disabled USB 2.0 in the BIOS of my PC and blacklisted ehci-hcd. >> Haven't seen Xacterrs or any other abnormalities. But phone is still >> not responding to AT commands. >> Spent some time comparing the usb snoops on Windows XP (phone works) >> to the wireshark on ubuntu. The bulk transfer transactions seem >> similar - but there could be differences in the control transfers. >> Not sure what to try next ! > > Does it crash on any commands? How about a simple ATZ? > > Regards > Oliver -- 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
