Hi I have a 3TB WD HDD in an USB3 enclosure that fails to show up if i connect the USB3-cable first and then switch on the enclosure. (Example-Log see below) If i either: - Wait a little before connecting the USB3-cable - Disconnect/Reconnect the USB3-cable - rmmod xhci; modprobe xhci The HDD shows up and works normally. Question is, is there something that i can do that doesn't involve 'rmmod'ing the xhci-driver or doing something physical? Is there a way to force a "rescan"? For e.g. is there something that i can do to a sysfs-file to force a "rescan" of the USB-port? Or can i prolong the timeout, which appears to be 5 seconds. Kernel in this case is a vanilla 3.6.2. xhci should be Intel but could also be from ASMedia (Z77-Chipset mainboard with 2 additional ASMedia chips soldered on) If more information is needed, i will happily provide it. First i connected the USB3-cable and then powered up the device: Oct 23 20:25:02 leeloo kernel: [852502.177231] usb 2-3: new SuperSpeed USB device number 2 using xhci_hcd Oct 23 20:25:12 leeloo kernel: [852512.178456] usb 2-3: New USB device found, idVendor=174c, idProduct=5106 Oct 23 20:25:12 leeloo kernel: [852512.178460] usb 2-3: New USB device strings: Mfr=2, Product=3, SerialNumber=1 Oct 23 20:25:12 leeloo kernel: [852512.178462] usb 2-3: Product: AS2105 Oct 23 20:25:12 leeloo kernel: [852512.178465] usb 2-3: Manufacturer: ASMedia Oct 23 20:25:17 leeloo kernel: [852517.173409] usb 2-3: can't set config #1, error -110 Disconnected cable: Oct 23 20:25:47 leeloo kernel: [852547.388581] usb 2-3: USB disconnect, device number 2 Reconnected cable: Oct 23 20:25:54 leeloo kernel: [852553.753383] usb 2-3: new SuperSpeed USB device number 3 using xhci_hcd Oct 23 20:25:54 leeloo kernel: [852553.776034] usb 2-3: New USB device found, idVendor=174c, idProduct=5106 Oct 23 20:25:54 leeloo kernel: [852553.776038] usb 2-3: New USB device strings: Mfr=2, Product=3, SerialNumber=1 Oct 23 20:25:54 leeloo kernel: [852553.776041] usb 2-3: Product: AS2105 Oct 23 20:25:54 leeloo kernel: [852553.776043] usb 2-3: Manufacturer: ASMedia Oct 23 20:25:54 leeloo kernel: [852553.776045] usb 2-3: SerialNumber: xxxxxxxxxxxx Oct 23 20:25:54 leeloo kernel: [852553.776792] scsi25 : usb-storage 2-3:1.0 Oct 23 20:25:55 leeloo kernel: [852554.790372] scsi 25:0:0:0: Direct-Access WDC WD30 EZRX-00MMMB0 80.0 PQ: 0 ANSI: 5 Oct 23 20:25:55 leeloo kernel: [852554.790580] sd 25:0:0:0: Attached scsi generic sg3 type 0 Oct 23 20:25:55 leeloo kernel: [852554.790659] sd 25:0:0:0: [sdd] Very big device. Trying to use READ CAPACITY(16). Oct 23 20:25:55 leeloo kernel: [852554.790840] sd 25:0:0:0: [sdd] 5860533168 512-byte logical blocks: (3.00 TB/2.72 TiB) Oct 23 20:25:55 leeloo kernel: [852554.791118] sd 25:0:0:0: [sdd] Write Protect is off Oct 23 20:25:55 leeloo kernel: [852554.791120] sd 25:0:0:0: [sdd] Mode Sense: 23 00 00 00 Oct 23 20:25:55 leeloo kernel: [852554.791389] sd 25:0:0:0: [sdd] No Caching mode page present Oct 23 20:25:55 leeloo kernel: [852554.791391] sd 25:0:0:0: [sdd] Assuming drive cache: write through Oct 23 20:25:55 leeloo kernel: [852554.791664] sd 25:0:0:0: [sdd] Very big device. Trying to use READ CAPACITY(16). Oct 23 20:25:55 leeloo kernel: [852554.792281] sd 25:0:0:0: [sdd] No Caching mode page present Oct 23 20:25:55 leeloo kernel: [852554.792285] sd 25:0:0:0: [sdd] Assuming drive cache: write through Oct 23 20:25:55 leeloo kernel: [852554.802142] sdd: sdd1 Oct 23 20:25:55 leeloo kernel: [852554.802529] sd 25:0:0:0: [sdd] Very big device. Trying to use READ CAPACITY(16). Oct 23 20:25:55 leeloo kernel: [852554.803113] sd 25:0:0:0: [sdd] No Caching mode page present Oct 23 20:25:55 leeloo kernel: [852554.803116] sd 25:0:0:0: [sdd] Assuming drive cache: write through Oct 23 20:25:55 leeloo kernel: [852554.803118] sd 25:0:0:0: [sdd] Attached SCSI disk Bis denn -- Real Programmers consider "what you see is what you get" to be just as bad a concept in Text Editors as it is in women. No, the Real Programmer wants a "you asked for it, you got it" text editor -- complicated, cryptic, powerful, unforgiving, dangerous. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html