citanie rfid

1. aka citacka?

2. aky os?

3. akym sw sa to cita?

4. aky format tie rfid pouzivaju? (frekvencia, jednocestne/dvojcestne)

5. cita to EPC? (EPC id cislo karty/cipu)

6. akym sposobom to funguje / ma fungovat? (PRAT, ARPT, ARAT)

a tak dalej.

cize treba informacie. vestecku gulu mam v servise

Citacka ti teda emuluje USB HID Input Device a klepka ti to ako klavesnica vsetko co precita. Na to v Linuxe nepotrebujes driver. Nainstaluj si balicek evtest, ktory obsahuje rovnomenny program. Pustis pod rootom, ten ti vypluje zoznam devices, napriklad u mna to vyzera takto, u teba tam na 99,9% bude aj ta RFID citacka:

lukas@ncc1701d ~ $ sudo evtest
No device specified, trying to scan all of /dev/input/event*
Available devices:
/dev/input/event0:	Sleep Button
/dev/input/event1:	Lid Switch
/dev/input/event10:	HDA Intel PCH Dock Headphone
/dev/input/event11:	HDA Intel PCH Headphone
/dev/input/event12:	HDA Intel PCH HDMI/DP,pcm=3
/dev/input/event13:	HDA Intel PCH HDMI/DP,pcm=7
/dev/input/event14:	HDA Intel PCH HDMI/DP,pcm=8
/dev/input/event15:	TPPS/2 IBM TrackPoint
/dev/input/event16:	Logitech G413 Silver Mechanical Gaming Keyboard
/dev/input/event17:	Logitech G413 Silver Mechanical Gaming Keyboard
/dev/input/event18:	Microsoft Comfort Mouse 3000 Consumer Control
/dev/input/event19:	Microsoft Comfort Mouse 3000 Mouse
/dev/input/event2:	Power Button
/dev/input/event3:	AT Translated Set 2 keyboard
/dev/input/event4:	PC Speaker
/dev/input/event5:	ThinkPad Extra Buttons
/dev/input/event6:	SynPS/2 Synaptics TouchPad
/dev/input/event7:	Video Bus
/dev/input/event8:	HDA Intel PCH Mic
/dev/input/event9:	HDA Intel PCH Dock Mic

Predpokladam ze to chces prevadzkovat ako headless system. Potom mozes zbastlit nejaky Python skript ktory za pomoci python-evdev cita z toho-ktoreho /dev/input/eventX zariadenia tie stlacenia klavesov. Ak chces, aby tie 4 USB citacky dostavali nejaky rozumny device node a nemusel si to po kazdom zapojeni do portu precislovavat, pocmaraj do udev:

SUBSYSTEM=="input", ATTRS{idVendor}=="1234", ATTRS{idProduct}=="5678", ATTRS{serial}=="ABC123456", SYMLINK+="input/rfid-reader"

Samozrejme, parametre si prisposob podla seba. Claude ti urcite velmi rad zbastli nejaky funkcny python program a za hodinku to mas.

ahoj lukas velmi pekne ti dakujem, vidim, ze to je mozne zrealizovat bohuzial neviem, ci to zvladnem nikdy som nic take nerobil, vieme sa nakontaktovat na seba?