Thanks, it made me think about it deeper...
On 20. 7. 8. 오전 12:07, Andy Shevchenko wrote:
On Tue, Jul 7, 2020 at 5:03 PM Sungbo Eo wrote:
On 20. 7. 6. 오후 9:00, Andy Shevchenko wrote:
...
But I don't really understand what mutex does here. The driver does not
need consecutive commands, it o
On Tue, Jul 7, 2020 at 5:03 PM Sungbo Eo wrote:
> On 20. 7. 6. 오후 9:00, Andy Shevchenko wrote:
...
> But I don't really understand what mutex does here. The driver does not
> need consecutive commands, it only sends/receives only one byte at a
> time. And AFAIK each i2c_smbus function is already
On 20. 7. 6. 오후 9:00, Andy Shevchenko wrote:
On Mon, Jul 6, 2020 at 2:21 PM Bartosz Golaszewski
wrote:>
On Sun, Jul 5, 2020 at 3:31 PM Sungbo Eo wrote:
NXP PCA9570 is a 4-bit I2C GPO expander without interrupt functionality.
Its ports are controlled only by a data byte without register addre
On Sun, Jul 5, 2020 at 4:31 PM Sungbo Eo wrote:
>
> NXP PCA9570 is a 4-bit I2C GPO expander without interrupt functionality.
> Its ports are controlled only by a data byte without register address.
Thank you for an update, my comments (besides what Bart has) below.
> Datasheet: https://www.nxp.c
On Mon, Jul 6, 2020 at 2:21 PM Bartosz Golaszewski
wrote:>
> On Sun, Jul 5, 2020 at 3:31 PM Sungbo Eo wrote:
> >
> > NXP PCA9570 is a 4-bit I2C GPO expander without interrupt functionality.
> > Its ports are controlled only by a data byte without register address.
> >
> > Datasheet: https://www.
On Sun, Jul 5, 2020 at 3:31 PM Sungbo Eo wrote:
>
> NXP PCA9570 is a 4-bit I2C GPO expander without interrupt functionality.
> Its ports are controlled only by a data byte without register address.
>
> Datasheet: https://www.nxp.com/docs/en/data-sheet/PCA9570.pdf
>
> Signed-off-by: Sungbo Eo
> --
NXP PCA9570 is a 4-bit I2C GPO expander without interrupt functionality.
Its ports are controlled only by a data byte without register address.
Datasheet: https://www.nxp.com/docs/en/data-sheet/PCA9570.pdf
Signed-off-by: Sungbo Eo
---
v5:
* amended the commit message
* removed unnecessary castin
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