* interface to trigger a bus recovery sequence
@ 2016-12-18 17:56 Jorge Ramirez
2016-12-18 23:14 ` Wolfram Sang
0 siblings, 1 reply; 2+ messages in thread
From: Jorge Ramirez @ 2016-12-18 17:56 UTC (permalink / raw)
To: linux-i2c
Hi all,
I was looking into the i2c bus recovery sequence and I was wondering why
there doesn't seem to be an interface (ioctl/sysfs) that allows a user
to trigger a recovery sequence.
Is this intentional or would such an interface - if it were to be
implemented- be welcome?
many thanks in advance.
jorge
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: interface to trigger a bus recovery sequence
2016-12-18 17:56 interface to trigger a bus recovery sequence Jorge Ramirez
@ 2016-12-18 23:14 ` Wolfram Sang
0 siblings, 0 replies; 2+ messages in thread
From: Wolfram Sang @ 2016-12-18 23:14 UTC (permalink / raw)
To: Jorge Ramirez; +Cc: linux-i2c
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> I was looking into the i2c bus recovery sequence and I was wondering why
> there doesn't seem to be an interface (ioctl/sysfs) that allows a user to
> trigger a recovery sequence.
I can't think of a reason why this should be possible. The I2C bus
driver should figure out when things go wrong and do the apropriate
actions. Also, the I2C specs have a clear definition when to use bus
recovery.
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