* Controlling the same I2C device from user and kernel space
@ 2024-03-26 9:52 Patryk
2024-03-26 10:00 ` Patryk
0 siblings, 1 reply; 2+ messages in thread
From: Patryk @ 2024-03-26 9:52 UTC (permalink / raw)
To: kernelnewbies
Hi, I've got a question. I have an I2C device (FPGA) connected to my
board. This device implements a hardware watchdog and GPIO expander.
My question is - can I control this device from userspace (watchdog
part) using spidev driver and still be able to develop a kernel driver
that controls GPIO expander part without any additional locking
mechanisms?
Best regards
Patryk
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Controlling the same I2C device from user and kernel space
2024-03-26 9:52 Controlling the same I2C device from user and kernel space Patryk
@ 2024-03-26 10:00 ` Patryk
0 siblings, 0 replies; 2+ messages in thread
From: Patryk @ 2024-03-26 10:00 UTC (permalink / raw)
To: kernelnewbies
Hi again, a small correction
> part) using spidev driver and still be able to develop a kernel driver
Of course, I meant i2c-dev, not spidev...
Best regards
Patryk
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^ permalink raw reply [flat|nested] 2+ messages in thread
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2024-03-26 9:52 Controlling the same I2C device from user and kernel space Patryk
2024-03-26 10:00 ` Patryk
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