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Salve a tutti... ho comprato una chiavetta Yakumo dvb usb QuickStick Basic per vedere la tv digitale terrestre sul Pc.
Allora :
ho il kernel 2.6.17.13, la chiavetta è supportata, ho letto e seguito le istruzioni su linuxtv.orgh, ho visto che in questo forum qualcuno la usa con successo.... e visto che io non ci riesco vi chiedo aiuto. Grazie in anticipo.

Penso che mi manchi qualche modulo fondamentale nel kernel comunque questo è il mio lsmod:
Module Size Used by
dvb_usb_dibusb_mb 13568 0
dvb_usb_dibusb_common 8964 1 dvb_usb_dibusb_mb
dib3000mc 14336 1 dvb_usb_dibusb_common
dib3000mb 11648 1 dvb_usb_dibusb_mb
dib3000_common 3584 2 dib3000mc,dib3000mb
dvb_usb_dtt200u 11524 0
dvb_usb 23944 3 dvb_usb_dibusb_mb,dvb_usb_dibusb_common,dvb_usb_dtt200u
firmware_class 11392 1 dvb_usb
radeon 104864 1
drm 68244 2 radeon
zr364xx 43692 0
ide_cd 40580 0
snd_pcm_oss 47648 0
snd_mixer_oss 18560 2 snd_pcm_oss
via_agp 10752 1
snd_ens1371 24064 2
snd_rawmidi 26400 1 snd_ens1371
snd_seq_device 9356 1 snd_rawmidi
snd_ac97_codec 86560 1 snd_ens1371
snd_ac97_bus 3328 1 snd_ac97_codec
snd_pcm 90116 3 snd_pcm_oss,snd_ens1371,snd_ac97_codec
snd_timer 25732 1 snd_pcm
snd 58212 10 snd_pcm_oss,snd_mixer_oss,snd_ens1371,snd_rawmidi,snd_seq_device,snd_ac97_codec,snd_pcm,snd_timer
snd_page_alloc 11400 1 snd_pcm
tda9887 17936 0
tuner 51116 0
saa7134 112224 0
video_buf 24964 1 saa7134
ir_kbd_i2c 9360 1 saa7134
ir_common 28292 2 saa7134,ir_kbd_i2c
agpgart 34764 2 drm,via_agp

Ci sono anche dei moduli dvb non necessari alla mia chiavetta ma forse ne maca qualcuno necessario.

Ho messo anche divrsi firmware indicati in linuxtv.org in /lib/firmware

Quando attacco la chiavetta questo è la parte di dmesg :

usb 1-3: new high speed USB device using ehci_hcd and address 5
usb 1-3: configuration #1 chosen from 1 choice

e basta.... mentre sui vari forum che ho trovato dovrebbe essere:

Mar 20 19:44:05 metis kernel: usb 1-4: new high speed USB device using ehci_hcd and address 8
Mar 20 19:44:05 metis kernel: dvb-usb: found a 'WideView WT-220U PenType Receiver (and clones)' in cold state, will try to load a firmware
Mar 20 19:44:05 metis kernel: dvb-usb: downloading firmware from file 'dvb-usb-wt220u-01.fw' to the 'Cypress FX2'
Mar 20 19:44:05 metis kernel: dvb-usb: WideView WT-220U PenType Receiver (and clones) successfully initialized and connected.
Mar 20 19:44:07 metis kernel: usb 1-4: USB disconnect, address 8
Mar 20 19:44:07 metis kernel: dvb-usb: generic DVB-USB module successfully deinitialized and disconnected.
Mar 20 19:44:08 metis kernel: usb 1-4: new high speed USB device using ehci_hcd and address 9
Mar 20 19:44:08 metis kernel: dvb-usb: found a 'WideView WT-220U PenType Receiver (and clones)' in warm state.
Mar 20 19:44:08 metis kernel: dvb-usb: will use the device's hardware PID filter (table count: 15).
Mar 20 19:44:08 metis kernel: DVB: registering new adapter (WideView WT-220U PenType Receiver (and clones)).
Mar 20 19:44:08 metis kernel: DVB: registering frontend 0 (WideView USB DVB-T)...
Mar 20 19:44:08 metis kernel: dvb-usb: schedule remote query interval to 300 msecs.
Mar 20 19:44:08 metis kernel: dvb-usb: WideView WT-220U PenType Receiver (and clones) successfully initialized and connected.

se può essere utile posto anche lspci:
Bus 001 Device 005: ID 14aa:0225 AVerMedia (again) or C&E
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 255 Vendor Specific Class
bDeviceSubClass 255 Vendor Specific Subclass
bDeviceProtocol 255 Vendor Specific Protocol
bMaxPacketSize0 64
idVendor 0x14aa AVerMedia (again) or C&E
idProduct 0x0225
bcdDevice 0.00
iManufacturer 0
iProduct 0
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 171
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 1
bNumEndpoints 6
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 bytes 512 once
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 bytes 512 once
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 bytes 512 once
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x04 EP 4 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 bytes 512 once
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x86 EP 6 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 bytes 512 once
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x88 EP 8 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 bytes 512 once
bInterval 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 2
bNumEndpoints 6
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 bytes 64 once
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 bytes 64 once
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 bytes 512 once
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x04 EP 4 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 bytes 512 once
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x86 EP 6 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 bytes 512 once
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x88 EP 8 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 bytes 512 once
bInterval 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 3
bNumEndpoints 6
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 bytes 64 once
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 bytes 64 once
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 bytes 512 once
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x04 EP 4 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 bytes 512 once
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x86 EP 6 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 bytes 512 once
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x88 EP 8 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 bytes 512 once
bInterval 0

sicuramente manca un modulo: innanzitutto verifca che modulo ti serve (guarda nel forum di cui parli nel post oppure cerca direttamente nel kernel).
in secondo luogo verifica che il modulo sia compilato, facendo un bel: se non appare nulla allora devi ricompilare il kernel abilitando il modulo se appare basta fare un bel ciao