Omnikey CardMan 4040 SmartCard Reader Driver

I’ve written the cmx(4) FreeBSD driver for the CardMan 4040 PCMCIA-based smartcard reader, using the vendor’s Linux driver as a guide on how to talk to the hardware, discovering a userland triggerable Linux kernel buffer overflow in the process…

• Status: committed to current, MFC'ed to RELENG_7 before 7.1; ported to DragonFlyBSD.
• Patches: historical
• FreeBSD cmx(4):
  • src/sys/dev/cmx
  • src/sys/modules/cmx
  • src/share/man/man4/cmx.4
• DragonFlyBSD cmx(4):
  • src/sys/dev/misc/cmx/
  • src/share/man/man4/cmx.4

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