11-14-2012, 03:41 PM | #1 |
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PRS-950 not recongized even though mountable
On my system, Calibre no longer recognizes my Sony PRS-950 reader. This did work before; I'm not certain what happened.
I've actually rebooted Linux once since the first time I've had this problem. In order to debug this I deleted the "Sony Reader Main Memory" directory (of which there were several) in my mount area (/media on Debian Linux). I then re-created the file, mounted the device on that (and see just some installation directories there). I re-ran the welcome wizard a couple of times. I expected the Wizard to leave some sort of token in the Sony Reader Main Memory, but it does not. The mount debug output is: Code:
calibre 0.9.6 Linux-3.1.0-1-amd64-x86_64-with-debian-wheezy-sid Linux ('Linux', '3.1.0-1-amd64', '#1 SMP Mon Jan 9 02:31:47 UTC 2012') Python 2.7.3 Linux: ('debian', 'wheezy/sid', '') USB devices on system: [ (trackball, keyboard, printers deleted) ['0x54c', '0x31e', '0x31a', u'Sony', u'Sony Digital Book Reader', u'08004610016EF215']] Looking for devices of type: MTP_DEVICE No known MTP devices connected to system Looking for devices... USBDevice(busnum=2, devnum=3, vendor_id=0x054c, product_id=0x031e, bcd=0x031a, manufacturer=Sony, product=Sony Digital Book Reader, serial=08004610016EF215) Detected possible device PRS505 Devices possibly connected: SONY Device Interface, Trying to open SONY Device Interface ... failed Opening of the following devices failed <calibre.devices.prs505.driver.PRS505 object at 0x23dca90> Traceback (most recent call last): File "site-packages/calibre/devices/__init__.py", line 155, in debug File "site-packages/calibre/devices/usbms/device.py", line 862, in open File "site-packages/calibre/devices/usbms/device.py", line 617, in open_linux DeviceError: Unable to detect the PRS505 disk drive. Either the device has already been ejected, or your kernel is exporting a deprecated version of SYSFS. Code:
[633811.077398] usb 2-4.1: new full speed USB device number 3 using ohci_hcd [633811.176394] usb 2-4.1: not running at top speed; connect to a high speed hub [633811.200395] usb 2-4.1: New USB device found, idVendor=054c, idProduct=031e [633811.200408] usb 2-4.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [633811.200418] usb 2-4.1: Product: Sony Digital Book Reader [633811.200425] usb 2-4.1: Manufacturer: Sony [633811.200430] usb 2-4.1: SerialNumber: (deleted) [633811.206612] scsi140 : usb-storage 2-4.1:1.0 [633812.212415] scsi 140:0:0:0: Direct-Access Sony PRS-950 1.00 PQ: 0 ANSI: 2 [633812.219487] scsi 140:0:0:1: Direct-Access Sony PRS-950 MS 1.00 PQ: 0 ANSI: 2 [633812.226406] scsi 140:0:0:2: Direct-Access Sony PRS-950 SD 1.00 PQ: 0 ANSI: 2 [633812.233395] scsi 140:0:0:3: Direct-Access Sony PRS-950 Launcher 1.00 PQ: 0 ANSI: 2 [633812.234878] sd 140:0:0:0: Attached scsi generic sg6 type 0 [633812.235497] sd 140:0:0:1: Attached scsi generic sg7 type 0 [633812.235855] sd 140:0:0:2: Attached scsi generic sg8 type 0 [633812.236743] sd 140:0:0:3: Attached scsi generic sg9 type 0 [633812.319376] sd 140:0:0:0: [sdf] Attached SCSI removable disk [633812.341380] sd 140:0:0:3: [sdi] Attached SCSI removable disk [633812.352372] sd 140:0:0:1: [sdg] Attached SCSI removable disk [633812.364043] sd 140:0:0:2: [sdh] Attached SCSI removable disk Last edited by myudkowsky; 11-14-2012 at 05:30 PM. |
11-17-2012, 11:01 PM | #2 |
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That error means that calibre was unable to find the device node in sysfs. That means either your kernel is not populating sysfs correctly or you set a kernel option to generate the deprecated old style sysfs tree.
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11-20-2012, 08:10 AM | #3 |
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Thanks for the advice.
Since the sysfs was the standard Linux version and the Sony PRS-950 were both otherwise in decent shape, I decided that the problem was probably a stuck USB bus. I confirmed this by trying to hotplug USB flash drives, which would not mount even though they were detected by udev. I rebooted my Linux box. When I hotplugged the reader, udev correctly created a "READER" directory and mounted the reader; and Calibre recognized the device, which is now working properly. Thank you. |
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