Re: MTP - Protocolo de Transferencia de Medios.
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El 19/06/15 a las 09:42, Javier ArgentinaBBAR escribió:
>
> El tema es ese. No da ningún error en pantalla. Es como si tomara
> el cable y yo me pusiera a conectarlo y desconectarlo a mano
> continuamente.
>
> $ lsusb (...) Bus 003 Device 029: ID 1004:91c8 LG Electronics, Inc.
> (...)
>
> $ mtp-detect libmtp version: 1.1.9
>
> Listing raw device(s) No raw devices found.
>
>
> Últimas líneas de /var/log/syslog:
>
> Jun 19 10:55:33 diabw37 kernel: [10022.517261] usb 3-7: USB
> disconnect, device number 22 Jun 19 10:55:33 diabw37 kernel:
> [10022.788883] usb 3-7: new high-speed USB device number 23 using
> xhci_hcd Jun 19 10:55:33 diabw37 kernel: [10022.917874] usb 3-7:
> New USB device found, idVendor=1004, idProduct=631c Jun 19
> 10:55:33 diabw37 kernel: [10022.917876] usb 3-7: New USB device
> strings: Mfr=2, Product=3, SerialNumber=4 Jun 19 10:55:33 diabw37
> kernel: [10022.917877] usb 3-7: Product: LG-E431g Jun 19 10:55:33
> diabw37 kernel: [10022.917878] usb 3-7: Manufacturer: LGE Jun 19
> 10:55:33 diabw37 kernel: [10022.917879] usb 3-7: SerialNumber:
> LGOTMS4b52b641 Jun 19 10:55:33 diabw37 kernel: [10022.932034] usb
> 3-7: usbfs: process 5241 (ThreadWeaver::T) did not claim interface
> 0 before use Jun 19 10:55:33 diabw37 kernel: [10023.097576] usb
> 3-7: reset high-speed USB device number 23 using xhci_hcd Jun 19
> 10:55:34 diabw37 kernel: [10023.225998] xhci_hcd 0000:00:14.0:
> xHCI xhci_drop_endpoint called with disabled ep ffff88020d177548
> Jun 19 10:55:34 diabw37 kernel: [10023.226001] xhci_hcd
> 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep
> ffff88020d177500 Jun 19 10:55:34 diabw37 kernel: [10023.226002]
> xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled
> ep ffff88020d177590 Jun 19 10:55:34 diabw37 kernel: [10023.226653]
> usb 3-7: usbfs: process 5241 (ThreadWeaver::T) did not claim
> interface 0 before use Jun 19 10:55:34 diabw37 kernel:
> [10023.337850] usb 3-7: USB disconnect, device number 23 Jun 19
> 10:55:34 diabw37 kernel: [10023.578179] usb 3-7: new high-speed USB
> device number 24 using xhci_hcd Jun 19 10:55:34 diabw37 mtp-probe:
> checking bus 3, device 24:
> "/sys/devices/pci0000:00/0000:00:14.0/usb3/3-7" Jun 19 10:55:34
> diabw37 mtp-probe: bus: 3, device: 24 was not an MTP device Jun 19
> 10:55:34 diabw37 mtp-probe: checking bus 3, device 24:
> "/sys/devices/pci0000:00/0000:00:14.0/usb3/3-7" Jun 19 10:55:34
> diabw37 kernel: [10023.711320] usb 3-7: New USB device found,
> idVendor=1004, idProduct=91c8 Jun 19 10:55:34 diabw37 kernel:
> [10023.711323] usb 3-7: New USB device strings: Mfr=2, Product=3,
> SerialNumber=4 Jun 19 10:55:34 diabw37 kernel: [10023.711324] usb
> 3-7: Product: LG-E431g Jun 19 10:55:34 diabw37 kernel:
> [10023.711325] usb 3-7: Manufacturer: LGE Jun 19 10:55:34 diabw37
> kernel: [10023.711326] usb 3-7: SerialNumber: LGOTMS4b52b641 Jun
> 19 10:55:34 diabw37 kernel: [10023.712011] usb-storage 3-7:1.0:
> USB Mass Storage device detected Jun 19 10:55:34 diabw37 kernel:
> [10023.712087] scsi18 : usb-storage 3-7:1.0 Jun 19 10:55:34
> diabw37 mtp-probe: bus: 3, device: 24 was not an MTP device Jun 19
> 10:55:35 diabw37 kernel: [10024.712444] scsi 18:0:0:0: CD-ROM LGE
> CDROM storage 0000 PQ: 0 ANSI: 2 Jun 19 10:55:35 diabw37
> kernel: [10024.816177] sr1: scsi-1 drive Jun 19 10:55:35 diabw37
> kernel: [10024.816296] sr 18:0:0:0: Attached scsi CD-ROM sr1 Jun
> 19 10:55:35 diabw37 kernel: [10024.816367] sr 18:0:0:0: Attached
> scsi generic sg4 type 5
>
El error que da es debido al modulo XHCI y por problema me refiero a
estos mensajes:
"xHCI xhci_drop_endpoint called with disabled ep ffff88020d177548"
Ya esto ha aparecido antes especialmente en algunos chipsets Intel
desde el kernel 3.10 en adelante, no estaría mal revisar eso en primer
lugar.
> Después de muchos intentos, conseguí un error de kio-plugin:
>
> Un error ha ocurrido mientras se accedía a «LGE Mobile (iso9660)»,
> el sistema respondió: The requested operation has failed: Error
> mounting /dev/sr1 at /media/javier/LGE Mobile: Command-line `mount
> -t "iso9660" -o
> "uhelper=udisks2,nodev,nosuid,uid=10552,gid=10552,iocharset=utf8
>
"/dev/sr1" "/media/javier/LGE Mobile"' exited with non-zero exit
> status 32: mount: /dev/sr1 is write-protected, mounting read-only
>
> mount: special device /dev/sr1 does not exist
>
>
>
> ¡¡¡Ay, ay, ay, ay....!!! ¿¿¿Por qué intenta montarlo en un
> dispositivo de CD formato iso9660!!!!! Nunca va a funcionar así.
Por el contrario va a funcionar aunque no es lo que tu crees. Lo que
pasa es que a LG le gusta poner varias cosas inútiles en sus
teléfonos, una de esas cosas es una imagen ISO9660 donde están algunas
utilitarias para Windows, y con utilitarias me refiero a drivers,
manuales y algún software para gestionar tu teléfono. Seguramente el
sistema detecto dicha imagen y trato de montarla pero fallo en el
proceso porque la conexión USB nunca se realiza de forma satisfactoria.
> Seguiré investigando el lunes. Hoy es muy viernes....
>
> JAP
>
>
Algo de información sobre el error de xHCI
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1371233
http://forums.debian.net/viewtopic.php?f=7&t=117061
https://lists.debian.org/debian-kernel/2014/03/msg00153.html
https://bugzilla.kernel.org/show_bug.cgi?id=25582
Saludos.
- --
Dios en su Cielo, todo bien en la Tierra
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