Messages in this thread | | | Subject | Re: [Regulator] Request for clarification - GPIO controlled regulator, USB VBUS, | From | Łukasz Majewski <> | Date | Wed, 4 Oct 2017 13:54:49 +0200 |
| |
Hi Mark,
> On Wed, Oct 04, 2017 at 12:45:39PM +0200, Łukasz Majewski wrote: >>> On Tue, Oct 03, 2017 at 06:58:00PM +0200, Łukasz Majewski wrote: > >>> Perhaps this is something >>> that could be implemented generically for USB as it's a hotpluggable bus > >> In this case we use VBUS as a power supply voltage. The problem with >> regulator API used in this case is that we enable it on boot-up, but then we >> cannot "symulate hotplug" anymore. > > I don't really understand what you mean there, sorry.
I do use "regulator-fixed" to control VBUS.
The USB driver used regulator_enable/disable to supply power of VBUS.
What I do want to achieve:
For testing purpose I would like to enable/disable this supply (VBUS) and force/restart of re-enumeration.
> The majority of > regulator usage is to supply power, use as reference voltages or > similar. >
-- Best regards.
Łukasz Majewski
| |