Hi Bjørn, 2017-04-21 12:30 GMT+02:00 Daniele Palmas <dnlplm@xxxxxxxxx>: > Hi Bjørn, > > 2017-04-19 19:28 GMT+02:00 Bjørn Mork <bjorn@xxxxxxx>: >> Daniele Palmas <dnlplm@xxxxxxxxx> writes: >> >> >> Would you mind describing in detail how you trigger the EIOs? What >> software and command sequence are you using? Does it reliably reproduce >> the issue, or do you have to try several times? What modem chipset and >> firmware is used? >> > > sorry for the delay, I'm using latest qmicli in master: > > danielepa@danielepa-OptiPlex-780:~/development/git/libqmi$ src/qmicli/qmicli -V > > qmicli 1.19.0 > > and I was able to reproduce the issue simply asking for something like > the manufacturer with qmicli. > > But I'm currently retrying it and it has become even worse (do not ask > me why...): qmicli returns a transaction timed out error and got > stuck. Only when detaching the USB cable qmicli exits. > > danielepa@danielepa-OptiPlex-780:~/development/git/libqmi$ sudo > src/qmicli/qmicli -d /dev/cdc-wdm0 --dms-get-manufacturer > [21 apr 2017, 12:15:33] -Warning ** [/dev/cdc-wdm0] requested auto > mode but no MBIM QMUX support available > error: couldn't create client for the 'dms' service: CID allocation > failed in the CTL client: Transaction timed out > > I'm not sure I'm seeing here only problems related to your commit, but > reverting the commit makes things to work again. > > The modem is a Telit LE920A4. I will try to collect more debug info. > So, I applied your debug patch and this is what is happening: [ 4294.935912] usb 2-2: new high-speed USB device number 18 using ehci-pci [ 4295.101548] usb 2-2: New USB device found, idVendor=1bc7, idProduct=1201 [ 4295.101551] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 4295.101553] usb 2-2: Product: Android [ 4295.101555] usb 2-2: Manufacturer: Android [ 4295.101557] usb 2-2: SerialNumber: 0123456789ABCDEF [ 4295.118159] option 2-2:1.0: GSM modem (1-port) converter detected [ 4295.118280] usb 2-2: GSM modem (1-port) converter now attached to ttyUSB0 [ 4295.119265] qmi_wwan 2-2:1.2: cdc-wdm0: USB WDM device [ 4295.120387] qmi_wwan 2-2:1.2 wwan0: register 'qmi_wwan' at usb-0000:00:1d.7-2, WWAN/QMI device, fe:b2:dd:b6:d5:b3 [ 4295.120464] option 2-2:1.3: GSM modem (1-port) converter detected [ 4295.120555] usb 2-2: GSM modem (1-port) converter now attached to ttyUSB1 [ 4295.120643] option 2-2:1.4: GSM modem (1-port) converter detected [ 4295.120699] usb 2-2: GSM modem (1-port) converter now attached to ttyUSB2 [ 4295.120785] option 2-2:1.5: GSM modem (1-port) converter detected [ 4295.120839] usb 2-2: GSM modem (1-port) converter now attached to ttyUSB3 [ 4295.120923] option 2-2:1.6: GSM modem (1-port) converter detected [ 4295.120978] usb 2-2: GSM modem (1-port) converter now attached to ttyUSB4 [ 4306.730786] wdm_open: qmi_wwan 2-2:1.2: draining queued data [ 4306.730955] wdm_write: qmi_wwan 2-2:1.2: Tx URB has been submitted index=2 Here qmicli is stuck. Then I disconnect the cable: [ 4421.317327] usb 2-2: USB disconnect, device number 18 [ 4421.317541] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0 [ 4421.317558] option 2-2:1.0: device disconnected [ 4421.320113] qmi_wwan 2-2:1.2 wwan0: unregister 'qmi_wwan' usb-0000:00:1d.7-2, WWAN/QMI device [ 4421.321297] qmi_wwan 2-2:1.2: Unexpected error -71 [ 4421.321303] wdm_in_callback: qmi_wwan 2-2:1.2: rerr=-71, status=-71, length=0, resp_count=0 [ 4421.325567] qmi_wwan 2-2:1.2: Error in flush path: -71 [ 4421.325579] wdm_release: qmi_wwan 2-2:1.2: wdm_release: cleanup [ 4421.335695] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1 [ 4421.335710] option 2-2:1.3: device disconnected [ 4421.335838] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2 [ 4421.335850] option 2-2:1.4: device disconnected [ 4421.335972] option1 ttyUSB3: GSM modem (1-port) converter now disconnected from ttyUSB3 [ 4421.335984] option 2-2:1.5: device disconnected [ 4421.336175] option1 ttyUSB4: GSM modem (1-port) converter now disconnected from ttyUSB4 [ 4421.336187] option 2-2:1.6: device disconnected This is instead the output with the commit reverted: [ 9868.397535] usb 2-2: new high-speed USB device number 19 using ehci-pci [ 9868.563187] usb 2-2: New USB device found, idVendor=1bc7, idProduct=1201 [ 9868.563189] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 9868.563191] usb 2-2: Product: Android [ 9868.563193] usb 2-2: Manufacturer: Android [ 9868.563195] usb 2-2: SerialNumber: 0123456789ABCDEF [ 9868.579788] option 2-2:1.0: GSM modem (1-port) converter detected [ 9868.579920] usb 2-2: GSM modem (1-port) converter now attached to ttyUSB0 [ 9868.580559] option 2-2:1.3: GSM modem (1-port) converter detected [ 9868.580629] usb 2-2: GSM modem (1-port) converter now attached to ttyUSB1 [ 9868.580721] option 2-2:1.4: GSM modem (1-port) converter detected [ 9868.580778] usb 2-2: GSM modem (1-port) converter now attached to ttyUSB2 [ 9868.580859] option 2-2:1.5: GSM modem (1-port) converter detected [ 9868.580915] usb 2-2: GSM modem (1-port) converter now attached to ttyUSB3 [ 9868.580995] option 2-2:1.6: GSM modem (1-port) converter detected [ 9868.581048] usb 2-2: GSM modem (1-port) converter now attached to ttyUSB4 [ 9868.603054] usbcore: registered new interface driver cdc_wdm [ 9868.605852] qmi_wwan 2-2:1.2: cdc-wdm0: USB WDM device [ 9868.606547] qmi_wwan 2-2:1.2 wwan0: register 'qmi_wwan' at usb-0000:00:1d.7-2, WWAN/QMI device, fe:b2:dd:b6:d5:b3 [ 9868.606674] usbcore: registered new interface driver qmi_wwan [ 9885.295723] wdm_write: qmi_wwan 2-2:1.2: Tx URB has been submitted index=2 [ 9885.296210] wdm_int_callback: qmi_wwan 2-2:1.2: NOTIFY_NETWORK_CONNECTION disconnected from network [ 9885.328208] wdm_int_callback: qmi_wwan 2-2:1.2: NOTIFY_RESPONSE_AVAILABLE received: index 2 len 0 [ 9885.328216] wdm_int_callback: qmi_wwan 2-2:1.2: submit response URB 0 [ 9885.329166] wdm_write: qmi_wwan 2-2:1.2: Tx URB has been submitted index=2 [ 9885.360203] wdm_int_callback: qmi_wwan 2-2:1.2: NOTIFY_RESPONSE_AVAILABLE received: index 2 len 0 [ 9885.360210] wdm_int_callback: qmi_wwan 2-2:1.2: submit response URB 0 [ 9885.361463] wdm_write: qmi_wwan 2-2:1.2: Tx URB has been submitted index=2 [ 9885.392210] wdm_int_callback: qmi_wwan 2-2:1.2: NOTIFY_RESPONSE_AVAILABLE received: index 2 len 0 [ 9885.392221] wdm_int_callback: qmi_wwan 2-2:1.2: submit response URB 0 [ 9885.393370] wdm_release: qmi_wwan 2-2:1.2: wdm_release: cleanup If needed I can try to collect usbmon. Regards, Daniele > Thanks, > Daniele > >> >> >> >> Bjørn >> -- 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
