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If the HDMI cable is disconnected or the CEC adapter is manually unconfigured, then all pending transmits and wait-for-replies are aborted. Signal this with new status bits (CEC_RX/TX_STATUS_ABORTED). If due to (usually) a driver bug a transmit never ends (i.e. the transmit_done was never called by the driver), then when this times out the message is marked with CEC_TX_STATUS_TIMEOUT. This should not happen and is an indication of a driver bug. Without a separate status bit for this it was impossible to detect this from userspace. The 'transmit timed out' kernel message is now a warning, so this should be more prominent in the kernel log as well. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Cc: <stable@vger.kernel.org> # for v4.18 and up Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> |
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| .. | ||
| cec-api.rst | ||
| cec-func-close.rst | ||
| cec-func-ioctl.rst | ||
| cec-func-open.rst | ||
| cec-func-poll.rst | ||
| cec-funcs.rst | ||
| cec-header.rst | ||
| cec-intro.rst | ||
| cec-ioc-adap-g-caps.rst | ||
| cec-ioc-adap-g-log-addrs.rst | ||
| cec-ioc-adap-g-phys-addr.rst | ||
| cec-ioc-dqevent.rst | ||
| cec-ioc-g-mode.rst | ||
| cec-ioc-receive.rst | ||
| cec-pin-error-inj.rst | ||