Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.




140 posts

Master Geek
+1 received by user: 56

Subscriber

Topic # 211652 5-Apr-2017 15:38
Send private message

I am in contact with an organisation that wants to keep an eye on who plugs what into their systems.

 

They'd like to say "No USBs" but that won't fly.
As a compromise, they let people plug in USB devices that are 'approved', and keep track of this by monitoring the electronic serial number that the USB device report to the OS when it gets plugged in. Works pretty well most of the time.

 

Now people want to plug in SD cards to upload data (maybe from a fixed-mount dashcam that they can't bring into the office), but the trouble is that the USB SD Card reader always reports the same electronic serial number - the one belonging to the SD Card Reader, not the one associated with the actual SD card.
So can anyone help with an SD card reader that, when a card is plugged in, reports "Card #xxxxxxxxxxxxx" has been plugged in, not "I'm SD Card reader #yyyyyyyyy, something was plugged in"

 

 

 

[And yes, we're well aware that the electronic serial number may bear no resemblance to any number printed / stamped on the outside ;-)]

 

 

 

 

 

Thanks


Create new topic

neb

405 posts

Ultimate Geek
+1 received by user: 52

Subscriber

  Reply # 1757266 5-Apr-2017 20:32
Send private message

I don't think you can do it. What you want to read is the card's 16-byte CID or card ID register, however USB readers typically won't pass through the command to read the CID. If you have direct, raw I/O access to the SD reader you could do it.

Create new topic



Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

From small to medium and beyond: Navigating the ERP battlefield
Posted 21-Nov-2017 21:12


Business owners: ERP software selection starts (and finishes) with you
Posted 21-Nov-2017 21:11


Why I'm not an early adopter
Posted 21-Nov-2017 10:39


Netatmo launches smart home products in New Zealand
Posted 20-Nov-2017 20:06


Huawei Mate 10: Punchy, long battery life, artificial intelligence
Posted 20-Nov-2017 16:30


Propel launch Disney Star Wars Laser Battle Drones
Posted 19-Nov-2017 21:26


UFB killer app: Speed
Posted 17-Nov-2017 17:01


The case for RSS — MacSparky
Posted 13-Nov-2017 14:35


WordPress and Indieweb: Take control of your online presence — 6:30 GridAKL Nov 30
Posted 11-Nov-2017 13:43


Chorus reveals technology upgrade for schools, students
Posted 10-Nov-2017 10:28


Vodafone says Internet of Things (IoT) crucial for digital transformation
Posted 10-Nov-2017 10:06


Police and Facebook launch AMBER Alerts system in NZ
Posted 9-Nov-2017 10:49


Amazon debuts Fire TV Stick Basic Edition in over 100 new countries
Posted 8-Nov-2017 05:34


Vodafone VoIP transition to start this month
Posted 7-Nov-2017 12:33


Spark enhances IoT network capability
Posted 7-Nov-2017 11:33



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.