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a864809894
If the kernel is built without e.g. the imon IR decoder, the protocols sysfs file still show the protocol as available. If user-space tries to enable this decoder, the kernel will report an error: $ echo +imon > /sys/class/rc/rc0/protocols [ 57.693033] rc_core: Loaded IR protocol module ir-imon-decoder, but protocol imon still not available Ensuring that unavailable protocols are not advertised, ensures that users space knows it is not available, and a BPF based IR decoder can be loaded instead. This supports the case when no kernel-based codec needs to be compiled in, and every IR decoder can be BPF based. Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> |
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