2010/7/14 Gadiyar, Anand <gadiyar@xxxxxx>: > Enric Balletbò i Serra >> Hello, >> >> When I disconnect an USB pendrive using twl4030 otg as host (step 2) >> the usb_disconnect function is not called. OTOH if I reconnect the >> device (step 3), then the usb_disconnect function is called. >> >> Does anyone have any ideas why usb_disconnect is not called when the >> device is removed? >> > > Which kernel version is this? Can you check if this patch fixes the behavior? > > http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=7d9645fdca444d53907b22a4b73e3967efe09781 I'm using stable kernel 2.6.33.6 And yes this patch is not applied in this version. I applied and solves the issue. Thank you very much. Best regards, -- Enric > > - Anand > > >> Steps to see the feature: >> >> Step 1 : Plug a USB pendrive: >> [ 2116.491546] usb 1-1: new high speed USB device using musb_hdrc and address 6 >> [ 2116.751861] usb 1-1: New USB device found, idVendor=058f, idProduct=6387 >> [ 2116.758697] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 >> [ 2116.765899] usb 1-1: Product: Mass Storage >> [ 2116.770019] usb 1-1: Manufacturer: 2.0 >> [ 2116.773834] usb 1-1: SerialNumber: A15B7B60 >> [ 2116.786468] scsi4 : usb-storage 1-1:1.0 >> [ 2117.797332] scsi 4:0:0:0: Direct-Access 2.0 Flash Disk 8.07 PQ: 0 ANSI: 2 >> [ 2117.813293] sd 4:0:0:0: [sda] 1968128 512-byte logical blocks: (1.00 GB/961 MiB) >> [ 2117.829040] sd 4:0:0:0: [sda] Write Protect is off >> [ 2117.834014] sd 4:0:0:0: [sda] Mode Sense: 03 00 00 00 >> [ 2117.834014] sd 4:0:0:0: [sda] Assuming drive cache: write through >> [ 2117.849212] sd 4:0:0:0: [sda] Assuming drive cache: write through >> [ 2117.856597] sda: sda1 >> [ 2117.965698] sd 4:0:0:0: [sda] Assuming drive cache: write through >> [ 2117.971954] sd 4:0:0:0: [sda] Attached SCSI removable disk >> [ 2118.738769] FAT: bogus number of reserved sectors >> [ 2118.743621] VFS: Can't find a valid FAT filesystem on dev sda. >> >> Step 2: Unplug the USB pendrive >> >> [ nothing here ] >> >> Step 3: Plug the USB pendrive: >> [ 2218.820556] usb 1-1: USB disconnect, address 6 >> [ 2219.139831] usb 1-1: new high speed USB device using musb_hdrc and address 7 >> [ 2219.400146] usb 1-1: New USB device found, idVendor=058f, idProduct=6387 >> [ 2219.406951] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 >> [ 2219.414184] usb 1-1: Product: Mass Storage >> [ 2219.418304] usb 1-1: Manufacturer: 2.0 >> [ 2219.422119] usb 1-1: SerialNumber: A15B7B60 >> [ 2219.434875] scsi5 : usb-storage 1-1:1.0 >> [ 2220.445770] scsi 5:0:0:0: Direct-Access 2.0 Flash Disk 8.07 PQ: 0 ANSI: 2 >> [ 2220.461547] sd 5:0:0:0: [sda] 1968128 512-byte logical blocks:(1.00 GB/961 MiB) >> [ 2220.476379] sd 5:0:0:0: [sda] Write Protect is off >> [ 2220.481323] sd 5:0:0:0: [sda] Mode Sense: 03 00 00 00 >> [ 2220.481323] sd 5:0:0:0: [sda] Assuming drive cache: write through >> [ 2220.497314] sd 5:0:0:0: [sda] Assuming drive cache: write through >> [ 2220.504516] sda: sda1 >> [ 2220.603790] sd 5:0:0:0: [sda] Assuming drive cache: write through >> [ 2220.610015] sd 5:0:0:0: [sda] Attached SCSI removable disk >> [ 2221.378570] FAT: bogus number of reserved sectors >> [ 2221.383453] VFS: Can't find a valid FAT filesystem on dev sda. >> > -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
