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	{{pkg\|ccid}} および {{Pkg\|pcsc-tools}} を [[インストール]] して下さい。		{{pkg\|ccid}} および {{Pkg\|pcsc-tools}} を [[インストール]] して下さい。

	== 使い方 ==		== 使用方法 ==

	=== USB ===		=== USB ===

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[[Category:ハードウェア]]
[[en:Touchatag RFID Reader]]
[[pl:Touchatag RFID Reader]]
Touchatag is a RFID tag reader from [https://web.archive.org/web/20120930194912/http://www.touchatag.com/ Touchatag]. It is a cheap set consisting of an ACR122U USB tag reader and MiFare Ultralight RFID tags (USB ID {{ic|072f:2200}}, use {{ic|lsusb -v}} to check the firmware version − 2.14 as of 2020-05-10 − under the {{ic|bcdDevice}} descriptor).

{{Note|Always put a tag on the reader, otherwise you might encounter problems.}}

== Installation ==

Stop the conflicting drivers ({{ic|nfc}}, {{ic|pn533}} and {{ic|pn533_usb}}) from loading.

See the note about [[Kernel module#Using files in /etc/modprobe.d/ 2|blacklisting]] drivers: the can still be loaded manually, so you should [[create]] the following file:

{{hc|/etc/modprobe.d/blacklist.conf|
install nfc /bin/false
install pn533 /bin/false
install pn533_usb /bin/false
}}

[[Udev#Loading new rules|Reload udev rules]], unload the conflicting modules if they were loaded already:

# rmmod pn533_usb pn533 nfc

or simply reboot.

There are two options for connecting the tag reader to libnfc. Difference between them is detailed on [https://stackoverflow.com/questions/45508174/force-pc-sc-driver-on-acr122u-nfc-reader stackoverflow].

=== USB ===

This is the modern and recommended way to use this device.

To use {{ic|acr122_usb}}, you do '''not''' need to run the pcsc daemon ([https://github.com/nfc-tools/libnfc/blob/master/README.md libnfc README] currently tells you to run it, but this is for the PC/SC way).

[[Install]] {{pkg|libnfc}}.

=== PC/SC ===

This is the legacy and deprecated way to use this device.

[[Install]] {{pkg|ccid}} and {{Pkg|pcsc-tools}}.

== Usage ==

=== USB ===

Check if the device is detected:

{{hc|# nfc-list|
nfc-list uses libnfc 1.7.1
NFC device: ACS / ACR122U PICC Interface opened
}}

Reading NFC cards works as well:

{{hc|# nfc-poll|
nfc-poll uses libnfc 1.7.1
NFC reader: ACS / ACR122U PICC Interface opened
NFC device will poll during 30000 ms (20 pollings of 300 ms for 5 modulations)
ISO/IEC 14443A (106 kbps) target:
ATQA (SENS_RES): 00 04
UID (NFCID1): 42 14 3e 2e
SAK (SEL_RES): 08
Waiting for card removing...nfc_initiator_target_is_present: Target Released
done.
}}

=== PC/SC ===

To test the device run:

# pcscd -f

[[Start]] {{ic|pcscd.service}}, then put a tag on the reader, the result should look like the following:

{{hc|# pcsc_scan|<nowiki>
PC/SC device scanner
V 1.4.17 (c) 2001-2009, Ludovic Rousseau <ludovic.rousseau@free.fr>
Compiled with PC/SC lite version: 1.6.6
Scanning present readers...
0: ACS ACR122U 00 00

Mon Mar 21 18:16:07 2011
Reader 0: ACS ACR122U 00 00
Card state: Card inserted, Shared Mode,
ATR: 3B BE 95 00 00 41 03 00 00 00 00 00 00 00 00 00 02 90 00

ATR: 3B BE 95 00 00 41 03 00 00 00 00 00 00 00 00 00 02 90 00
+ TS = 3B --> Direct Convention
+ T0 = BE, Y(1): 1011, K: 14 (historical bytes)
TA(1) = 95 --> Fi=512, Di=16, 32 cycles/ETU
125000 bits/s at 4 MHz, fMax for Fi = 5 MHz => 156250 bits/s
TB(1) = 00 --> VPP is not electrically connected
TD(1) = 00 --> Y(i+1) = 0000, Protocol T = 0
-----
+ Historical bytes: 41 03 00 00 00 00 00 00 00 00 00 02 90 00
Category indicator byte: 41 (proprietary format)

Possibly identified card (using /usr/share/pcsc/smartcard_list.txt):
3B BE 95 00 00 41 03 00 00 00 00 00 00 00 00 00 02 90 00
touchatag SAM card
</nowiki>}}

== Tips and tricks ==

=== tagEventor ===

[https://code.google.com/p/tageventor/ tagEventor] runs in the background and executes scripts when a tag enters or leaves your tag reader.

Download a [https://code.google.com/p/tageventor/downloads/list binary version] or [https://code.google.com/p/tageventor/source/checkout compile] your own.

Run tagEventor to test your installation:

# tagEventor -v 1

The scripts are located in {{ic|/etc/gtagEventor}}. Read the [https://code.google.com/p/tageventor/ tagEventor documentation] on how to use them.

== Troubleshooting ==

=== Firmware [...] is bogus! Upgrade the reader firmware ===

If you encounter a problem like this:

ccid_usb.c:859:ccid_check_firmware() Firmware (1.00) is bogus! Upgrade the reader firmware or get a new reader.
ifdhandler.c:104:IFDHCreateChannelByName() failed
readerfactory.c:1050:RFInitializeReader() Open Port 200000 Failed (usb:072f/2200:libusb:006)
readerfactory.c:233:RFAddReader() ACS ACR122U PICC Interface init failed.

The [https://github.com/nfc-tools/libnfc/blob/master/README.md libnfc README] suggests to do the following:

Removing the bogus firmware detection of libccid: [[edit]] {{ic|libccid_Info.plist}} configuration file (usually {{ic|/etc/libccid_Info.plist}}) and locate {{ic|<key>ifdDriverOptions</key>}}, turn {{ic|<string>0x0000</string>}} into {{ic|0x0004}} to allow bogus devices and [[restart]] {{ic|pcscd.service}}.

{{Note|If you use ACS CCID drivers (acsccid), configuration file is located in something like: {{ic|/usr/lib/pcsc/drivers/ifd-acsccid.bundle/Contents/Info.plist}} or {{ic|/usr/lib/pcsc/drivers/ifd-ccid.bundle/Contents/Info.plist}}.}}

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Kgx: /* 使い方 */ 同期

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