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wppurking/zebra_code128.rb

Created March 20, 2019 15:27
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zebra_code128.rb
require 'libusb'
# 初始化 Libusb context
usb = LIBUSB::Context.new
# 通过固定的 idVendor 获取 zebra 的第一个 usb 设备.
# https://usb-ids.gowdy.us/read/UD/
d = usb.devices(idVendor: 0x0a5f).first
# 通过 device 获取用于操作 io 的 DevHandler
h = d.open
# 获取需要操作的的第一个 usb interface 的句柄
h.claim_interface(d.interfaces.first)
# zpl 语言的打印
zpl = %(^XA
^JMA^LL228^PW308^MD10^RP2^PON^LRN^LH10,0
^FO0,32^BY2^BCN,80,Y,N,N,A^FDXB001KAN4^FS
^PQ1
^XZ
)
# 传输 zpl 给 zebra 打印机进行打印
h.bulk_transfer(endpoint: d.endpoints.find {|e| e.direction == :out }, dataOut: zpl, timeout: 3000)
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