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AnswerRe: From framebuffer to SPI via ioctl in Linux Pin
Jochen Arndt23-Apr-18 4:59
professionalJochen Arndt23-Apr-18 4:59 
GeneralRe: From framebuffer to SPI via ioctl in Linux Pin
Vaclav_23-Apr-18 5:17
Vaclav_23-Apr-18 5:17 
GeneralRe: From framebuffer to SPI via ioctl in Linux Pin
Jochen Arndt23-Apr-18 5:24
professionalJochen Arndt23-Apr-18 5:24 
GeneralRe: From framebuffer to SPI via ioctl in Linux Pin
Vaclav_23-Apr-18 9:08
Vaclav_23-Apr-18 9:08 
GeneralRe: From framebuffer to SPI via ioctl in Linux Pin
Jochen Arndt23-Apr-18 11:28
professionalJochen Arndt23-Apr-18 11:28 
GeneralRe: From framebuffer to SPI via ioctl in Linux Pin
Vaclav_23-Apr-18 14:39
Vaclav_23-Apr-18 14:39 
GeneralRe: From framebuffer to SPI via ioctl in Linux Pin
Jochen Arndt23-Apr-18 22:21
professionalJochen Arndt23-Apr-18 22:21 
GeneralRe: From framebuffer to SPI via ioctl in Linux Pin
Vaclav_24-Apr-18 13:16
Vaclav_24-Apr-18 13:16 
Thanks,
I finally have fdftf documentation to study.

Here is the "introduction":

The fbtft kernel module is a layer between the driver and the framebuffer subsystem.

I'll give in a go.

Still little confused with terminology

Linux has a driver and fdftf is the interface between driver and framebuilder?
Why is it called "subsystem" while fdftf "knows" about actuall ( hardware ) device such as SPI?

Let me read the doc and hope it will make more sense after.
GeneralRe: From framebuffer to SPI via ioctl in Linux Pin
Jochen Arndt24-Apr-18 22:07
professionalJochen Arndt24-Apr-18 22:07 
GeneralRe: From framebuffer to SPI via ioctl in Linux Pin
Vaclav_25-Apr-18 4:36
Vaclav_25-Apr-18 4:36 
GeneralRe: From framebuffer to SPI via ioctl in Linux Pin
Jochen Arndt25-Apr-18 5:20
professionalJochen Arndt25-Apr-18 5:20 
GeneralRe: From framebuffer to SPI via ioctl in Linux Pin
Vaclav_25-Apr-18 10:11
Vaclav_25-Apr-18 10:11 
GeneralRe: From framebuffer to SPI via ioctl in Linux Pin
Vaclav_25-Apr-18 10:11
Vaclav_25-Apr-18 10:11 
AnswerRe: From framebuffer to SPI via ioctl in Linux Pin
Vaclav_23-Apr-18 6:21
Vaclav_23-Apr-18 6:21 
Questionerror: expected unqualified-id before numeric constant Pin
Vaclav_22-Apr-18 17:49
Vaclav_22-Apr-18 17:49 
AnswerRe: error: expected unqualified-id before numeric constant Pin
Richard MacCutchan22-Apr-18 23:20
mveRichard MacCutchan22-Apr-18 23:20 
AnswerRe: error: expected unqualified-id before numeric constant Pin
Jochen Arndt22-Apr-18 23:58
professionalJochen Arndt22-Apr-18 23:58 
AnswerRe: error: expected unqualified-id before numeric constant Pin
Vaclav_23-Apr-18 4:04
Vaclav_23-Apr-18 4:04 
AnswerRe: error: expected unqualified-id before numeric constant Pin
Vaclav_23-Apr-18 5:57
Vaclav_23-Apr-18 5:57 
GeneralRe: error: expected unqualified-id before numeric constant Pin
Richard MacCutchan23-Apr-18 7:42
mveRichard MacCutchan23-Apr-18 7:42 
GeneralRe: error: expected unqualified-id before numeric constant Pin
Vaclav_23-Apr-18 9:11
Vaclav_23-Apr-18 9:11 
GeneralRe: error: expected unqualified-id before numeric constant Pin
Vaclav_23-Apr-18 14:36
Vaclav_23-Apr-18 14:36 
GeneralRe: error: expected unqualified-id before numeric constant Pin
Richard MacCutchan23-Apr-18 22:05
mveRichard MacCutchan23-Apr-18 22:05 
GeneralRe: error: expected unqualified-id before numeric constant Pin
Vaclav_25-Apr-18 4:42
Vaclav_25-Apr-18 4:42 
GeneralRe: error: expected unqualified-id before numeric constant Pin
Richard MacCutchan25-Apr-18 5:59
mveRichard MacCutchan25-Apr-18 5:59 

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