In case anybody finds this via search, Dell put out a firmware patch (Windows only right now) that upgrades the chip.
https://ludovicrousseau.blogspot.com/2016/08/broadcom-ccid-readers.html
http://www.dell.com/support/home/us/en/19/Drivers/DriversDetails?driverId=JP80V&fileId=3559873652&osCode=W764&productCode=latitude-e5570-laptop&languageCode=en&categoryId=SY
Basically, if you can upgrade the firmware and ccid versions, the card reader should work (of course, it takes booting into windows to updgrade the firmware, so....)
https://cloudnull.io/2017/07/x1-firmware-without-windows/ may help, YMMV
In case anybody finds this via search, Dell put out a firmware patch (Windows only right now) that upgrades the chip.
https:/ /ludovicroussea u.blogspot. com/2016/ 08/broadcom- ccid-readers. html
http:// www.dell. com/support/ home/us/ en/19/Drivers/ DriversDetails? driverId= JP80V&fileId= 3559873652& osCode= W764&productCod e=latitude- e5570-laptop& languageCode= en&categoryId= SY
Basically, if you can upgrade the firmware and ccid versions, the card reader should work (of course, it takes booting into windows to updgrade the firmware, so....)
https:/ /cloudnull. io/2017/ 07/x1-firmware- without- windows/ may help, YMMV