Mark Grieveson <[EMAIL PROTECTED]>: > Hello. I recently got a USB hub with four ports. While I can plug a > storage device, or a digital camera, into it, and read these devices > separately, it seems that I cannot mount and read them at the same time > (IE, view images from the digital camera, while simultaneously viewing > files on the USB storage device).
It'd help to know what software you're running. In many wm's, wizards watch devices and pop up running what they decide is the most appropriate application. Depending on whether you'd like to list the contents of a media or play that media, it may or may not do what you want at the time. You can ignore/disable them and do it manually for more control (and possibly less confusion). > Anyway, all suggestions are appreciated. > > PS, I tried dmesg, and I don't understand what it's saying. It gives a > bunch of information, and reports various errors. See an edited > version of it below: > > usb usb1: configuration #1 chosen from 1 choice > hub 1-0:1.0: USB hub found > hub 1-0:1.0: 2 ports detected > usb 1-2: new full speed USB device using uhci_hcd and address 2 I believe that means USB 1.0 (slow). ehci is 2.0? > drivers/usb/class/usblp.c: usblp0: USB Bidirectional printer dev 2 if 0 > alt 0 pr oto 2 vid 0x03F0 pid 0x3A02 > usbcore: registered new driver usblp > drivers/usb/class/usblp.c: v0.13: USB Printer Device Class driver There's your USB connected printer. > usb 1-1: new full speed USB device using uhci_hcd and address 3 > usb 1-1: configuration #1 chosen from 1 choice > hub 1-1:1.0: USB hub found > hub 1-1:1.0: 4 ports detected > usb 1-1.3: new full speed USB device using uhci_hcd and address 4 There's the hub. > usb 1-1.3: configuration #1 chosen from 1 choice > usbcore: registered new driver usbserial > drivers/usb/serial/usb-serial.c: USB Serial support registered for > generic usbcore: registered new driver usbserial_generic > drivers/usb/serial/usb-serial.c: USB Serial Driver core > drivers/usb/serial/usb-serial.c: USB Serial support registered for Eh? What's serial? :-) > Handspring Vi sor / Palm OS > drivers/usb/serial/usb-serial.c: USB Serial support registered for Sony > Clie 3.5 drivers/usb/serial/usb-serial.c: USB Serial support registered > for Sony Clie 5.0 visor 1-1.3:1.0: Handspring Visor / Palm OS converter > detected usb 1-1.3: Handspring Visor / Palm OS converter now attached > to ttyUSB0 usb 1-1.3: Handspring Visor / Palm OS converter now attached > to ttyUSB1 usbcore: registered new driver visor There's your PDA. > drivers/usb/serial/visor.c: USB HandSpring Visor / Palm OS driver > usb 1-1.3: USB disconnect, address 4 > usb 1-1.2: USB disconnect, address 5 > usb 1-1.1: new full speed USB device using uhci_hcd and address 6 > usb 1-1.1: configuration #1 chosen from 1 choice > scsi1 : SCSI emulation for USB Mass Storage devices > usb-storage: device found at 6 > usb-storage: waiting for device to settle before scanning > Vendor: USB 2.0 Model: Storage Device Rev: 0100 > Type: Direct-Access ANSI SCSI revision: 00 > usb-storage: device scan complete > usb 1-1.2: new full speed USB device using uhci_hcd and address 7 Your camera. fdisk -l /dev/sd[a-z] > usb 1-1.2: configuration #1 chosen from 1 choice > scsi2 : SCSI emulation for USB Mass Storage devices > usb-storage: device found at 7 > usb-storage: waiting for device to settle before scanning > Vendor: HP Model: USB CAMERA Rev: 1.00 > Type: Direct-Access ANSI SCSI revision: 00 > usb 1-1.2: USB disconnect, address 7 > usb 1-1.3: new full speed USB device using uhci_hcd and address 8 > usb 1-1.3: configuration #1 chosen from 1 choice > visor 1-1.3:1.0: Handspring Visor / Palm OS converter detected > usb 1-1.3: Handspring Visor / Palm OS converter now attached to ttyUSB0 > usb 1-1.3: Handspring Visor / Palm OS converter now attached to ttyUSB1 Check out /dev/ttyUSB[01]? > usb 1-1.3: USB disconnect, address 8 > visor ttyUSB0: Handspring Visor / Palm OS converter now disconnected > from ttyUSB 0 > visor ttyUSB1: Handspring Visor / Palm OS converter now disconnected > from ttyUSB 1 > visor 1-1.3:1.0: device disconnected > usb 1-1.2: new full speed USB device using uhci_hcd and address 9 > usb 1-1.2: configuration #1 chosen from 1 choice > scsi3 : SCSI emulation for USB Mass Storage devices > usb-storage: device found at 9 > usb-storage: waiting for device to settle before scanning > usb-storage: device scan complete > Buffer I/O error on device sdb1, logical block 1947 > attempt to access beyond end of device > sdb: rw=0, want=15616, limit=15537 > Buffer I/O error on device sdb1, logical block 1947 /dev/sdb1? "mkdir /mnt/sdb1 && mount -t auto /dev/sdb1 /mnt/sdb1 && ls -AlF /mnt/sdb1" > attempt to access beyond end of device That sounds ugly. > usb 1-1.2: USB disconnect, address 9 > FAT: invalid media value (0xb9) > VFS: Can't find a valid FAT filesystem on dev sda. > FAT: invalid media value (0xb9) > ususb 1-1.2: new full speed USB device using uhci_hcd and address 10 > usb 1-1.2: configuration #1 chosen from 1 choice > scsi4 : SCSI emulation for USB Mass Storage devices > usb-storage: device found at 10 > usb-storage: waiting for device to settle before scanning > Vendor: HP Model: USB CAMERA Rev: 1.00 > Type: Direct-Access ANSI SCSI revision: 00 > b 1-1.2: new full speed USB device using uhci_hcd and address 10 > usb 1-1.2: configuration #1 chosen from 1 choice > scsi4 : SCSI emulation for USB Mass Storage devices > usb-storage: device found at 10 > usb-storage: waiting for device to settle before scanning > Vendor: HP Model: USB CAMERA Rev: 1.00 > Type: Direct-Access ANSI SCSI revision: 00 -- Any technology distinguishable from magic is insufficiently advanced. 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