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Posted: Wed Dec 14, 2011 4:47 pm
by carl
We've had several comments about the IOGEAR GSR202. One of our customers sent us one of the readers that doesn't work. We spent some time working with it, and this is what we found.

For identification purposes, our reader has a Product ID of 0x9540 and a vendor ID of 0x058f. To see the same information on your reader, open System Profiler ( from the Utilities folder ), select USB, and then select the card reader. You should see something like this:
IOGEAR GSR202 Profile.png
IOGEAR GSR202 viewed in System Profiler ( Mac OS X v10.6.8 )
IOGEAR GSR202 Profile.png (76.26 KiB) Viewed 40568 times
When I attached this reader to Mac OS X v10.5, v10.6, & v10.7; I could not get it to be recognized by pcscd ( a daemon on Mac OS X that is used to communicate with smart card readers ). On Mac OS X v10.6.8, the following output appears in the system log when the reader is attached:
  • pcscd[27]: Non-smartcard device launched pcscd [Vendor: 0X58F, Product: 0X9540]
In an attempt to make this reader work, I did the following:
  1. Make a backup of the file the file /usr/libexec/SmartCardServices/drivers/ifd-ccid.bundle/Contents/Info.plist.
  2. Edit the file above ( I used 'vi' ).
  3. At the bottom of the section <key>ifdFriendlyName</key>, add a Friendly Name for the reader:
    • <string>Alcor Micro, Corp. 0x9540</string>
  4. At the bottom of the section <key>ifdProductID</key>, add a Product ID for the reader:
    • <string>0x9540</string>
  5. At the bottom of the section <key>ifdVendorID</key>, add a Vendor ID for the reader.
    • <string>0x058F</string>
  6. Save the file and get pcscd to refresh ( sudo killall pcscd, unplug the reader, and then connect it again ).
Now, the reader works! This solution ( at least for me ) has the side effect of the following line a few times every second:
  • Dec 14 15:44:04 carl[23]: /SourceCache/SmartcardCCID/SmartcardCCID-35253/ccid/ccid/src/commands.c:945:CmdGetSlotStatus Card absent or mute
That's not a good solution, but at least it works ( if that's the only option you have ).

If you have any other suggestions, please let me know.


Re: What card reader do you use?

Posted: Sat Dec 17, 2011 9:11 pm
by chiefgeek
More information on the IOGear GSR-202 reader commonly sold at the BX/PX, online, and at Fry's Electronics.

The current model is GSR-202, however, IOGear updated the firmware sometime in the last few months. The original GSR-202 I tested for them works fine.

The firmware version on the one I have (and that works) is:
Product ID: 0x9520
Vendor ID: 0x058f (Alcor Micro, Corp.)
Version: 1.02

The current model being sold may have the above firmware, or the below:
Product ID: 0x9540
Vendor ID: 0x058f (Alcor Micro, Corp.)
Version: 1.20

If you have the bottom one, you will have problems. Unfortunately, there is no way to know which model you have until you look into About this Mac, More Info, Hardware, USB, then click the actual reader, then look in the pane below.

NEWSFLASH: As of: 4 January 2012, there is a fix, please visit: and follow the PDF instructions in the folder.

Re: What card reader do you use?

Posted: Sun Jan 15, 2012 1:31 pm
by carl

I used Apple's Boot Camp and Windows XP Home to update the firmware on my IOGEAR GSR202 reader. The process was straight forward. The update failed the first time, but I disconnected my USB mouse and tried again, and then it went without a hitch. The 'update' changes the "Product ID" to 0x9520 and the "Version" to 1.02 (see below).
IOGEAR GSR202 Profile.png
Updated IOGEAR GSR202 viewed in System Profiler ( Mac OS X v10.6.8 )
IOGEAR GSR202 Profile.png (76.34 KiB) Viewed 40247 times
I then connected it to the Mac running Mac OS X v10.6.8 and 'pcsctest' tested it successfully. The system.log still shows repeated errors:
  • Jan 15 12:28:58 carl[24]: /SourceCache/SmartcardCCID/SmartcardCCID-35253/ccid/ccid/src/commands.c:945:CmdGetSlotStatus Card absent or mute
The errors don't cause any harm, but they're logged several times per second.


Re: What card reader do you use?

Posted: Mon Jun 10, 2013 7:08 pm
by robertcoogan
Mainly I use the I use the Cherry ST-1044U. It works fine, as well as two other USB Smart Card Readers I use - but those two only when I travel. They are the Indentive SCR335v2 and the Litronic NetSign 215. The Litronic was loaned to me by the Marine Corps command where I work, I don't actually own it. It is also black, where the commercial variants are not. ... /index.htm ... ard-reader

Re: What card reader do you use?

Posted: Tue Jun 11, 2013 8:04 am
by jim_t

The Cherry ST-1044 doesn't appear to support OS X based on the manufacturer's site. If you have information on how to get this reader to work with OS X and PKard for Mac, please feel free to include that here. I'm sure our users would appreciate the information.


Jim Thomas
Senior Support Specialist

Re: What card reader do you use?

Posted: Mon Feb 17, 2014 9:11 pm
by mike_enos
Has anyone had success using the Thursby Lightning Reader with the desktop/laptop Mac? If I connect it via Micro USB to a Windows PC, it works fine.

However, I haven't been able to get OS X to recognize it (I'm running 10.9.1).