Description of problem: Using usb NFC Reader Product: ACR122U PICC Interface Manufacturer: ACS I get these messages: kernel: usb 1-1: new full-speed USB device number 15 using xhci_hcd kernel: usb 1-1: New USB device found, idVendor=072f, idProduct=2200 kernel: usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 kernel: usb 1-1: Product: ACR122U PICC Interface kernel: usb 1-1: Manufacturer: ACS kernel: usb 1-1: NFC: Reader power on cmd error -11 kernel: pn533_usb 1-1:1.0: NFC: Couldn't poweron the reader (error -11) kernel: pn533_usb: probe of 1-1:1.0 failed with error -11 Version-Release number of selected component (if applicable): 4.12.14-1.mga7 How reproducible: always Steps to Reproduce: 1. plug usb reader 2. read the messages above in journal NB: patches are available on redhat bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1436866
Assignee: bugsquad => kernelCC: (none) => marja11
Having a look to the Mageia kernel source, it seems that the patch is already applied to 4.12.14-1.mga7.
The patch was applied upstream in 4.12-rc1 so yes it's already included
CC: (none) => pterjan
It is not clear to me which patch did the trick and solved the problem at Fedora side.
The patch was for the bug when sending acks, there may be another problem which causes the failure in your case
Also, I have a ACR122U reader somewhere at home but I am not sure if I can find it soon.
Solved with recent kernel (I don’t know exactly which one).
Status: NEW => RESOLVEDResolution: (none) => FIXED