I'm facing some problems with a barcode scanner from Cygnal Inc, model Sweda SL-20. Info from lsusb -v:
Code:
Bus 003 Device 003: ID 10c4:ff11 Cygnal Integrated Products, Inc.
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x10c4 Cygnal Integrated Products, Inc.
idProduct 0xff11
bcdDevice 1.00
iManufacturer 1 Gue℉Ā
iProduct 2 Gue℉Ā
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 41
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 200mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 1 Boot Interface Subclass
bInterfaceProtocol 1 Keyboard
iInterface 5 (error)
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.00
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 65
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 5
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 5
Device Status: 0x0001
Self Powered
If I use the scanner on Windows or Linux default programs, no problem decoding the barcodes.
But I have a POS application that when I scan a barcode seems to be too fast for the application.
I used the manual barcode codes to setup the device, but no effect.
If I scan to gedit, nano, terminal, firefox, rdp client, etc, everything works, but in this particular application doesn't. I tried to contact the supplier, but they said that the device isn't certified by them, so no support at all.
Searching on google, I found several samples codes to simulate I want, I found bash script, python c++.
What I need is a way to intercept the input device buffer and resend the input with a bigger delay between each char.
I tried to use stdbuf, but it has not effect. It already has input mode to LINE BUFFER. I'm searcing about it, but if you have any sample code to provide, it'll help me a lot.
---------- Post updated 03-18-16 at 08:07 AM ---------- Previous update was 03-17-16 at 10:47 AM ----------
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