Module linux 

Available on Linux and crate feature linux only.

Linux /dev/dvb/adapterN/caM CaDevice implementation (the linux feature).

This is the one place the crate uses unsafe — the DVB CA ioctls (CA_RESET, CA_GET_SLOT_INFO) via rustix::ioctl, confined to the private ioctl submodule below, which exposes safe functions. The ioctl request numbers are built by rustix::ioctl::opcode (the per-architecture _IOC encoding — it differs between x86/arm and mips/powerpc/sparc) from include/uapi/linux/dvb/ca.h’s group/number/type, not hard-coded magic.

Runtime behaviour requires a real DVB card with a CI slot; it is compile-checked in CI but exercised only on hardware.

Structs

LinuxCaDevice

A CaDevice backed by a Linux DVB CA character device.

LinuxCiDataDevice

A CiDataDevice backed by a Linux DVB CI TS data-plane device (/dev/dvb/adapterN/ciM). The host writes scrambled TS and reads the descrambled TS back; I/O is in whole 188-byte packets.