Here's the lsusb output:
Bus 001 Device 002: ID 058f:9540 Alcor Micro Corp.
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.01
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x058f Alcor Micro Corp.
idProduct 0x9540
bcdDevice 1.20
iManufacturer 1 Generic
iProduct 2 EMV Smartcard Reader
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 93
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xa0
(Bus Powered)
Remote Wakeup
MaxPower 50mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 3
bInterfaceClass 11 Chip/SmartCard
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
ChipCard Interface Descriptor:
bLength 54
bDescriptorType 33
bcdCCID 1.10 (Warning: Only accurate for version 1.0)
nMaxSlotIndex 0
bVoltageSupport 7 5.0V 3.0V 1.8V
dwProtocols 3 T=0 T=1
dwDefaultClock 3700
dwMaxiumumClock 12000
bNumClockSupported 3
dwDataRate 9946 bps
dwMaxDataRate 688172 bps
bNumDataRatesSupp. 138
dwMaxIFSD 254
dwSyncProtocols 00000007 2-wire 3-wire I2C
dwMechanical 00000000
dwFeatures 000404BE
Auto configuration based on ATR
Auto activation on insert
Auto voltage selection
Auto clock change
Auto baud rate change
Auto PPS made by CCID
Auto IFSD exchange
Short and extended APDU level exchange
dwMaxCCIDMsgLen 272
bClassGetResponse echo
bClassEnvelope echo
wlcdLayout none
bPINSupport 0
bMaxCCIDBusySlots 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0004 1x 4 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0010 1x 16 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0010 1x 16 bytes
bInterval 0Binary Object Store Descriptor:
bLength 5
bDescriptorType 15
wTotalLength 12
bNumDeviceCaps 1
USB 2.0 Extension Device Capability:
bLength 7
bDescriptorType 16
bDevCapabilityType 2
bmAttributes 0x00000002
Link Power Management (LPM) SupportedDevice Status: 0x0000
(Bus Powered)
For the scdaemon log, do you need it:
- with pcscd running or with GnuPG direct ccid implementation?
- in “working” condition (for example doing a gpg --card-status or gpg --sign)?
- during the “breakage” (doing a gpg --decrypt)
- in “broken” condition (after doing a gpg --decrypt).
Sorry if my report wasn't so clear. The broken behavior only appears:
- when using GnuPG ccid implementation (instead of pcscd);
- when doing a decrypt operation (maybe also an encrypt, I didn't check yet, but I'd be surprised since the smartcard hardly do any job here)
After trying a decrypt operation, the USB reader is in a non working condition, and I can only restore working condition by doing a reboot (I'v
tried to cut power to the USB bus but that doesn't seem enough).