Bonjour,
j’utilise la debian du projet DebianEeePC, je suis sur le kernel 2.6.26-1.
Tous les périphériques que je branche sur les ports USB sont aussi rapides que de l’USB 1 (lents quoi).
À votre avis, d’où peut venir le problème?
donne la sortie d’un dmesg | grep -i usb après avoir introduit une clé usb par exemple.
Donne aussi la sortie de:
lsmod | grep -i usb
lsmod | grep -i ohci
Ton lecteur de carte SD fonctionne? Le mien n’a jamais marché, depuis le début 
Le lecteur de cartes marchait au début. Maintenant il me fait une belle “Hardware error” (dans dmesg) lorsque j’insère une carte. Pas cool.
Voici le résultat des commandes.
Je me suis déjà dit que peut-être en modprobant ehci_hcd et ohci_hcd, cela changerait quelque-chose pour les clés que je brancherais ensuite mais non…
david@david-eeepc:~$ dmesg | grep -i usb
[ 4.312214] usbcore: registered new interface driver usbfs
[ 4.312296] usbcore: registered new interface driver hub
[ 4.312391] usbcore: registered new device driver usb
[ 4.341604] USB Universal Host Controller Interface driver v3.0
[ 4.342030] uhci_hcd 0000:00:1d.0: new USB bus registered, assigned bus number 1
[ 4.342315] usb usb1: configuration #1 chosen from 1 choice
[ 4.342394] hub 1-0:1.0: USB hub found
[ 4.449247] usb usb1: New USB device found, idVendor=1d6b, idProduct=0001
[ 4.449260] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 4.449269] usb usb1: Product: UHCI Host Controller
[ 4.449275] usb usb1: Manufacturer: Linux 2.6.26-1-686 uhci_hcd
[ 4.449281] usb usb1: SerialNumber: 0000:00:1d.0
[ 4.449467] uhci_hcd 0000:00:1d.1: new USB bus registered, assigned bus number 2
[ 4.449726] usb usb2: configuration #1 chosen from 1 choice
[ 4.449805] hub 2-0:1.0: USB hub found
[ 4.552334] usb usb2: New USB device found, idVendor=1d6b, idProduct=0001
[ 4.552348] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 4.552356] usb usb2: Product: UHCI Host Controller
[ 4.552362] usb usb2: Manufacturer: Linux 2.6.26-1-686 uhci_hcd
[ 4.552368] usb usb2: SerialNumber: 0000:00:1d.1
[ 4.552591] uhci_hcd 0000:00:1d.2: new USB bus registered, assigned bus number 3
[ 4.552848] usb usb3: configuration #1 chosen from 1 choice
[ 4.552928] hub 3-0:1.0: USB hub found
[ 4.656320] usb usb3: New USB device found, idVendor=1d6b, idProduct=0001
[ 4.656331] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 4.656339] usb usb3: Product: UHCI Host Controller
[ 4.656345] usb usb3: Manufacturer: Linux 2.6.26-1-686 uhci_hcd
[ 4.656352] usb usb3: SerialNumber: 0000:00:1d.2
[ 4.656547] uhci_hcd 0000:00:1d.3: new USB bus registered, assigned bus number 4
[ 4.656814] usb usb4: configuration #1 chosen from 1 choice
[ 4.656889] hub 4-0:1.0: USB hub found
[ 4.760303] usb usb4: New USB device found, idVendor=1d6b, idProduct=0001
[ 4.760318] usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 4.760326] usb usb4: Product: UHCI Host Controller
[ 4.760332] usb usb4: Manufacturer: Linux 2.6.26-1-686 uhci_hcd
[ 4.760338] usb usb4: SerialNumber: 0000:00:1d.3
[ 4.924117] usb 3-1: new full speed USB device using uhci_hcd and address 2
[ 5.087908] usb 3-1: configuration #1 chosen from 1 choice
[ 5.091085] usb 3-1: New USB device found, idVendor=0951, idProduct=1606
[ 5.091095] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=4
[ 5.091102] usb 3-1: Product: UB6225
[ 5.091108] usb 3-1: Manufacturer: ENE
[ 5.091113] usb 3-1: SerialNumber: 146030377350
[ 5.328065] usb 4-2: new full speed USB device using uhci_hcd and address 2
[ 5.360311] Initializing USB Mass Storage driver...
[ 5.476488] usb 4-2: configuration #1 chosen from 1 choice
[ 5.480184] usb 4-2: New USB device found, idVendor=eb1a, idProduct=2761
[ 5.480196] usb 4-2: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 5.480452] scsi2 : SCSI emulation for USB Mass Storage devices
[ 5.480661] usbcore: registered new interface driver usb-storage
[ 5.480670] USB Mass Storage support registered.
[ 5.484386] usb-storage: device found at 2
[ 5.484394] usb-storage: waiting for device to settle before scanning
[ 10.485849] usb-storage: device scan complete
[ 10.488827] scsi 2:0:0:0: Direct-Access USB2.0 CardReader SD0 0100 PQ: 0 ANSI: 0
[ 15.292467] usbcore: registered new interface driver uvcvideo
[ 15.292479] USB Video Class driver (v0.1.0)
[18441.256044] usb 1-2: new full speed USB device using uhci_hcd and address 2
[18441.423234] usb 1-2: configuration #1 chosen from 1 choice
[18441.430740] scsi3 : SCSI emulation for USB Mass Storage devices
[18441.438258] usb 1-2: New USB device found, idVendor=0781, idProduct=550a
[18441.438276] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[18441.438284] usb 1-2: Product: Cruzer Pattern
[18441.438290] usb 1-2: Manufacturer: SanDisk
[18441.438295] usb 1-2: SerialNumber: 3514030EEB405362
[18441.438998] usb-storage: device found at 2
[18441.439009] usb-storage: waiting for device to settle before scanning
[18446.438179] usb-storage: device scan complete
david@david-eeepc:~$ lsmod | grep -i usb
usb_storage 75936 0
scsi_mod 129356 5 sg,sr_mod,usb_storage,sd_mod,libata
usbcore 118160 4 uvcvideo,usb_storage,uhci_hcd
david@david-eeepc:~$ lsmod | grep -i ohci