Gionni FireGarden firegarden...@gmail.com writes:
Il giorno 14 febbraio 2015 15:42, Rodolfo Medina rodolfo.med...@gmail.com
ha scritto:
Ciao a tutti.
Con Debian 8, sid: al log in, a volte - non sempre - appare il seguente
messaggio:
usb 2-1: device descriptor read/64, error -71
che disturba il log in stesso, poiché, quando esso appare, dalla console
tty1 devo trasferirmi alla tty2 se voglio effettuare il log in. È da
notare che nessun dispositivo usb è inserito.
non è vero: la webcam, o l'hub usb interno, il touchpad a volte, vengono
visti come usb esempio io adesso non ho attaccato nulla di usb al laptop
eppure, ad esempio $lsusb Bus 002 Device 009: ID 04f3:0103 Elan
Microelectronics Corp. ActiveJet K-2024 Multimedia Keyboard
:)
Che vuol dire, e come evitarlo?
get a try
paulphilippov.com/articles/how-to-fix-device-not-accepting-address-error
http://askubuntu.com/questions/117524/usb-device-not-accepting-address
http://www.aigarius.com/blog/2008/01/31/slow-starting-usb-storage-in-linux/
Con le
precedenti versioni di Debian, per evitare simili messaggi del kernel mi
bastava aggiungere al file /etc/init.d/rc.local la riga seguente:
dmesg -n 1
questo comanda non fa altro che ...
-n, --console-level level
Set the level at which logging of messages is done to the console. The level
is a level number or abbreviation of the level name. For all supported
levels see dmesg --help output.
For example, -n 1 or -n alert prevents all messages, except emergency (panic)
messages, from appearing on the console. All levels of messages are still
written to /proc/kmsg, so syslogd (8) can still be used to control exactly
where kernel messages appear. When the -n option is used, dmesg will not
print or clear the kernel ring buffer.
quindi non elimina il problema, al massimo lo nasconde
, ma ora ciò non aiuta.
Grazie di eventuali gradite risposte.
prova a vedere con i consigli su, casomai dacci piu info
tipo un lsusb [-t] [-v]
e cose cosi
Rodolfo
ciao, gionni
$ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
$ lsusb -t
/: Bus 05.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M
/: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M
/: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/8p, 480M
$ lsusb -v
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Couldn't open device, some information will be missing
Device Descriptor:
bLength18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass9 Hub
bDeviceSubClass 0 Unused
bDeviceProtocol 0 Full speed (or root) hub
bMaxPacketSize064
idVendor 0x1d6b Linux Foundation
idProduct 0x0002 2.0 root hub
bcdDevice3.16
iManufacturer 3
iProduct2
iSerial 1
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 25
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 9 Hub
bInterfaceSubClass 0 Unused
bInterfaceProtocol 0 Full speed (or root) hub
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes3
Transfer TypeInterrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0004 1x 4 bytes
bInterval 12
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Couldn't open device, some information will be missing
Device Descriptor:
bLength18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass9 Hub
bDeviceSubClass 0 Unused
bDeviceProtocol 0 Full speed (or root) hub
bMaxPacketSize064
idVendor 0x1d6b Linux Foundation
idProduct 0x0001 1.1 root hub
bcdDevice3.16
iManufacturer 3
iProduct2
iSerial 1
