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Roverok / libnfc

Automatically exported from code.google.com/p/libnfc
GNU Lesser General Public License v3.0
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Each SCL3711 usage produce a usb resetting #89

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago 
What steps will reproduce the problem?
1. Plug a PN533 USB device (may do the same with PN531) like SCL3711
2. Check dmesg
[23154.692012] usb 2-1: new full speed USB device using uhci_hcd and address 59
[23154.960033] usb 2-1: New USB device found, idVendor=04e6, idProduct=5591
[23154.960037] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[23154.960041] usb 2-1: Product: SCL3711-NFC&RW
[23154.960043] usb 2-1: Manufacturer: SCM Micro
[23154.960150] usb 2-1: configuration #1 chosen from 1 choice
3. Run examples/nfc-list
4. Check again dmesg:
[23321.620017] usb 2-1: reset full speed USB device using uhci_hcd and address 
59

What is the expected output? What do you see instead?
I don't think that USB need to be resetted at each access. BTW, if I cut out 
usb_reset() function in pn53x_usb.c, the device is no more usable after a 
single command. (e.g. re-run nfc-list)

Original issue reported on code.google.com by romu...@libnfc.org on 26 Jul 2010 at 12:58

GoogleCodeExporter commented 9 years ago 
Fixed in r519.

Original comment by romu...@libnfc.org on 12 Aug 2010 at 12:50