> I notice that the /dev/smbX devices are exclusive access. This makes
> it impossible to run two (or more) programs concurrently that want
> to talk to SMbus devices (in my case, healthd and lmmon, both of which
> want to open /dev/smb0 to access the LM78).
>
> Is this an SMbus restriction, or an artifact of the smb driver? I did a
> very quick scan through /sys/dev/smbus/* and nothing jumped out to
> indicate why it needs to be exclusive access.
Transactions on the bus should be locked, ie. only one client talking at
a time, but it should probably be feasible to allow more than one opener.
The SMBus code is dearly in need of a maintainer. 8(
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