On 01/12/2012 08:19 PM, Alan Stern wrote: >> Is there any way to get this to a usable state? I'm using Linux 3.2. > > Can you post a usbmon trace showing what happens when the reader is > plugged in? Here it is, a link to usbmon output for a 32 GB SDHC; below, pasted matching dmesg output: http://www.virtall.com/files/temp/32-GB-SDHC-broken.log [256998.807004] usb 2-1.2: new full-speed USB device number 26 using ehci_hcd [256998.902962] scsi33 : usb-storage 2-1.2:1.0 [256998.918968] xhci_hcd 0000:03:00.0: PME# disabled [256998.919005] xhci_hcd 0000:03:00.0: setting latency timer to 64 [256999.903126] scsi 33:0:0:0: Direct-Access USB2.0 CARD-READER 1.01 PQ: 0 ANSI: 2 [256999.904814] sd 33:0:0:0: Attached scsi generic sg1 type 0 [256999.911725] sd 33:0:0:0: [sdb] Attached SCSI removable disk [256999.930286] sd 33:0:0:0: [sdb] 4290410496 512-byte logical blocks: (2.19 TB/1.99 TiB) [256999.931445] sd 33:0:0:0: [sdb] No Caching mode page present [256999.931455] sd 33:0:0:0: [sdb] Assuming drive cache: write through [256999.935162] sd 33:0:0:0: [sdb] No Caching mode page present [256999.935169] sd 33:0:0:0: [sdb] Assuming drive cache: write through [256999.940502] sdb: sdb1 [257001.553979] xhci_hcd 0000:03:00.0: PME# enabled [257030.601695] usb 2-1.2: reset full-speed USB device number 26 using ehci_hcd [257061.680843] usb 2-1.2: reset full-speed USB device number 26 using ehci_hcd [257092.632102] usb 2-1.2: reset full-speed USB device number 26 using ehci_hcd Here, the same action for a 2 GB SD card (working correctly), and a matching dmesg: http://www.virtall.com/files/temp/2GB-SD-working.log [256730.780984] usb 2-1.2: new full-speed USB device number 20 using ehci_hcd [256730.875977] scsi27 : usb-storage 2-1.2:1.0 [256730.892967] xhci_hcd 0000:03:00.0: PME# disabled [256730.893004] xhci_hcd 0000:03:00.0: setting latency timer to 64 [256731.873595] scsi 27:0:0:0: Direct-Access USB2.0 CARD-READER 1.01 PQ: 0 ANSI: 2 [256731.877195] sd 27:0:0:0: Attached scsi generic sg1 type 0 [256731.883371] sd 27:0:0:0: [sdb] Attached SCSI removable disk [256731.903746] sd 27:0:0:0: [sdb] 3981312 512-byte logical blocks: (2.03 GB/1.89 GiB) [256731.904950] sd 27:0:0:0: [sdb] No Caching mode page present [256731.904961] sd 27:0:0:0: [sdb] Assuming drive cache: write through [256731.909074] sd 27:0:0:0: [sdb] No Caching mode page present [256731.909085] sd 27:0:0:0: [sdb] Assuming drive cache: write through [256731.914959] sdb: sdb1 [256732.908506] xhci_hcd 0000:03:00.0: PME# enabled -- Tomasz Chmielewski http://wpkg.org -- 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
