Hola jar229
Creo el directorio sin problemas pero al reiniciar desaparece.
en el registro del sistema sale y detecta el usb, creo
Thu Jan 1 01:00:11 1970 auth.info kernel: [ 4.120000] usbcore: registered new interface driver usbfs
Thu Jan 1 01:00:11 1970 auth.info kernel: [ 4.124000] usbcore: registered new interface driver hub
Thu Jan 1 01:00:11 1970 auth.info kernel: [ 4.132000] usbcore: registered new device driver usb
Thu Jan 1 01:00:11 1970 auth.info kernel: [ 4.256000] Button Hotplug driver version 0.4.1
Thu Jan 1 01:00:11 1970 auth.info kernel: [ 5.244000] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
Thu Jan 1 01:00:11 1970 auth.info kernel: [ 5.256000] ehci-platform: EHCI generic platform driver
Thu Jan 1 01:00:11 1970 auth.info kernel: [ 5.364000] ehci-platform ehci-platform: EHCI Host Controller
Thu Jan 1 01:00:11 1970 auth.info kernel: [ 5.368000] ehci-platform ehci-platform: new USB bus registered, assigned bus number 1
Thu Jan 1 01:00:11 1970 auth.info kernel: [ 5.376000] ehci-platform ehci-platform: irq 50, io mem 0xb0002500
Thu Jan 1 01:00:11 1970 auth.info kernel: [ 5.396000] ehci-platform ehci-platform: USB 2.0 started, EHCI 1.00, overcurrent ignored
Thu Jan 1 01:00:11 1970 auth.info kernel: [ 5.404000] hub 1-0:1.0: USB hub found
Thu Jan 1 01:00:11 1970 auth.info kernel: [ 5.408000] hub 1-0:1.0: 1 port detected
Thu Jan 1 01:00:11 1970 auth.info kernel: [ 5.696000] Initializing USB Mass Storage driver...
Thu Jan 1 01:00:11 1970 auth.info kernel: [ 5.700000] usbcore: registered new interface driver usb-storage
Thu Jan 1 01:00:11 1970 auth.info kernel: [ 5.708000] USB Mass Storage support registered.
Thu Jan 1 01:00:11 1970 auth.info kernel: [ 5.716000] input: gpio-keys-polled as /devices/platform/gpio-keys-polled.0/input/input0
Thu Jan 1 01:00:11 1970 auth.info kernel: [ 5.884000] usb 1-1: new high-speed USB device number 2 using ehci-platform
esto pasa cuando desconecto y conecto la impresora
Fri Sep 13 09:32:28 2013 auth.info kernel: [ 315.048000] usb 1-1: USB disconnect, device number 2
Fri Sep 13 09:32:32 2013 auth.info kernel: [ 319.460000] usb 1-1: new high-speed USB device number 3 using ehci-platform
gracias