Parsing Interface Descriptor for device: 001/037 iManufacturer: SCM Microsystems Inc. iProduct: SCR33x USB Smart Card Reader bLength: 9 bDescriptorType: 4 bInterfaceNumber: 0 bAlternateSetting: 0 bNumEndpoints: 3 bInterfaceClass: 0x0B [Chip Card Interface Device Class (CCID)] bInterfaceSubClass: 0 bInterfaceProtocol: 0 iInterface: 4 CCID Class Descriptor bLength: 0x36 bDescriptorType: 0x21 bcdCCID: 1.00 bMaxSlotIndex: 0x00 bVoltageSupport: 0x01 5.0V dwProtocols: 0x0000 0x0003 T=0 T=1 dwDefaultClock: 4.000 MHz dwMaximumClock: 12.000 MHz bNumClockSupported: 0x00 dwDataRate: 9600 bps dwMaxDataRate: 115200 bps bNumDataRatesSupported: 0 dwMaxIFSD: 252 dwSynchProtocols: 0x00000000 dwMechanical: 0x00000000 No special characteristics dwFeatures: 0x000100BA Automatic parameter configuration based on ATR data Automatic ICC voltage selection Automatic ICC clock frequency change according to parameters Automatic baud rate change according to frequency and Fi, Di parameters Automatic PPS made by the ICC TPDU level exchange dwMaxCCIDMessageLength: 263 bytes bClassGetResponse: 255 bClassEnveloppe: 255 wLcdLayout: 0x0000 bPINSupport: 0x00 bMaxCCIDBusySlots: 1Download Driver Pack
After your driver has been downloaded, follow these simple steps to install it.
Expand the archive file (if the download file is in zip or rar format).
If the expanded file has an .exe extension, double click it and follow the installation instructions.
Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.
Find the device and model you want to update in the device list.
Double-click on it to open the Properties dialog box.
From the Properties dialog box, select the Driver tab.
Click the Update Driver button, then follow the instructions.
Very important: You must reboot your system to ensure that any driver updates have taken effect.
For more help, visit our Driver Support section for step-by-step videos on how to install drivers for every file type.