Good day everyone,
I’m using a Raspberry Pi 4 with two ACS ACR1281 1S Dual Readers connected. Occasionally, one of the readers (the one that’s frequently used) becomes unresponsive—it stops reacting to card taps—but it still shows up in lsusb.
When I run pcsc_scan, I often get the following errors:
Here’s what I’ve tried so far:
Using a powered USB hub
Disabling usbcore.autosuspend
Testing on different OS versions (Bookworm, Trixie) and multiple PCSC versions
Confirmed power supply at 5.2V
Has anyone experienced similar behavior or found a stable workaround for this issue? Any insights or suggestions would be greatly appreciated.
Thank you!
I’m using a Raspberry Pi 4 with two ACS ACR1281 1S Dual Readers connected. Occasionally, one of the readers (the one that’s frequently used) becomes unresponsive—it stops reacting to card taps—but it still shows up in lsusb.
When I run pcsc_scan, I often get the following errors:
Code:
ccid_usb.c:1313:ReadUSB() read failed (1/4): -7 LIBUSB_ERROR_TIMEOUThotplug_libudev.c:523:HPAddDevice() Failed adding USB device: ACS ACR1281 1S Dual ReaderHere’s what I’ve tried so far:
Using a powered USB hub
Disabling usbcore.autosuspend
Testing on different OS versions (Bookworm, Trixie) and multiple PCSC versions
Confirmed power supply at 5.2V
Has anyone experienced similar behavior or found a stable workaround for this issue? Any insights or suggestions would be greatly appreciated.
Thank you!
Statistics: Posted by mhgabatin — Mon Oct 20, 2025 3:39 am