Hi all, there has been many success stories about connecting a usb disk to an iBook G4. Well, in may case it also looks ok, if the device wouldn't disconnect all the time. Here is an excerpt from the syslog -------------------------------------------------------------- Feb 15 12:31:09 localhost kernel: usb 4-2: new high speed USB device using ehci_hcd and address 3 Feb 15 12:31:10 localhost kernel: hub 4-0:1.0: over-current change on port 2 Feb 15 12:31:10 localhost kernel: usb 4-2: USB disconnect, address 3 Feb 15 12:31:10 localhost kernel: usb 4-2: new high speed USB device using ehci_hcd and address 4 Feb 15 12:31:11 localhost kernel: Initializing USB Mass Storage driver... Feb 15 12:31:11 localhost usb.agent[355]: usb-storage: loaded successfully Feb 15 12:31:11 localhost kernel: scsi0 : SCSI emulation for USB Mass Storage devices Feb 15 12:31:11 localhost kernel: usbcore: registered new driver usb-storage Feb 15 12:31:11 localhost kernel: USB Mass Storage support registered. Feb 15 12:31:11 localhost kernel: usb-storage: device found at 4 Feb 15 12:31:11 localhost kernel: usb-storage: waiting for device to settle before scanning Feb 15 12:31:12 localhost usb.agent[421]: usb-storage: already loaded Feb 15 12:31:16 localhost scsi.agent[473]: disk at /devices/pci0001:10/0001:10:1b.2/usb4/4-2/4-2:2.0/host0/target0:0:0/0:0:0:0 Feb 15 12:31:16 localhost kernel: Vendor: IC25N030 Model: ATDA04-0 Rev: DA4O Feb 15 12:31:16 localhost kernel: Type: Direct-Access ANSI SCSI revision: 00 Feb 15 12:31:16 localhost kernel: usb-storage: device scan complete Feb 15 12:31:16 localhost kernel: SCSI device sda: 58605120 512-byte hdwr sectors (30006 MB) Feb 15 12:31:16 localhost kernel: sda: assuming drive cache: write through Feb 15 12:31:17 localhost kernel: SCSI device sda: 58605120 512-byte hdwr sectors (30006 MB) Feb 15 12:31:17 localhost kernel: sda: assuming drive cache: write through Feb 15 12:31:17 localhost kernel: /dev/scsi/host0/bus0/target0/lun0: [mac] p1 p2 Feb 15 12:31:17 localhost kernel: Attached scsi disk sda at scsi0, channel 0, id 0, lun 0 Feb 15 12:31:29 localhost kernel: hub 4-0:1.0: over-current change on port 2 Feb 15 12:31:29 localhost kernel: usb 4-2: USB disconnect, address 4 Feb 15 12:31:29 localhost kernel: usb 4-2: new high speed USB device using ehci_hcd and address 5 Feb 15 12:31:30 localhost kernel: scsi1 : SCSI emulation for USB Mass Storage devices Feb 15 12:31:30 localhost kernel: usb-storage: device found at 5 Feb 15 12:31:30 localhost kernel: usb-storage: waiting for device to settle before scanning Feb 15 12:31:30 localhost usb.agent[572]: usb-storage: already loaded Feb 15 12:31:35 localhost kernel: Vendor: IC25N030 Model: ATDA04-0 Rev: DA4O Feb 15 12:31:35 localhost kernel: Type: Direct-Access ANSI SCSI revision: 00 Feb 15 12:31:35 localhost kernel: SCSI device sda: 58605120 512-byte hdwr sectors (30006 MB) Feb 15 12:31:35 localhost kernel: sda: assuming drive cache: write through Feb 15 12:31:35 localhost kernel: SCSI device sda: 58605120 512-byte hdwr sectors (30006 MB) Feb 15 12:31:35 localhost kernel: sda: assuming drive cache: write through Feb 15 12:31:35 localhost kernel: /dev/scsi/host1/bus0/target0/lun0: [mac] p1 p2 Feb 15 12:31:35 localhost kernel: Attached scsi disk sda at scsi1, channel 0, id 0, lun 0 Feb 15 12:31:35 localhost kernel: usb-storage: device scan complete Feb 15 12:31:36 localhost scsi.agent[611]: disk at /devices/pci0001:10/0001:10:1b.2/usb4/4-2/4-2:2.0/host1/target1:0:0/1:0:0:0 Feb 15 12:31:47 localhost kernel: hub 4-0:1.0: over-current change on port 2 Feb 15 12:31:48 localhost kernel: usb 4-2: USB disconnect, address 5 .... -------------------------------------------------------------- Now it keeps repeatingly connecting and disconnecting until I unpluged the device. I'm using a self compiled linux 2.6.11-rc4 and a freshly installed debian unstable. There has just been a mouse connected to the usb bus when the disk was plugged in. Anybody any explaination for this odd behaviour? Uwe PS: The same usb disk did work on a pismo with linux 2.6.6. -- MMK GmbH, Universitaetsstr. 11, 58097 Hagen Uwe.Steinmann@mmk-hagen.de Tel: +2331 840446 Fax: +2331 843920
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