f_ changed the topic of ##raspberrypi-internals to: The inner workings of the Raspberry Pi (Low level VPU/HW) -- for general queries please visit #raspberrypi -- open firmware: https://librerpi.github.io/ -- VC4 VPU Programmers Manual: https://github.com/hermanhermitage/videocoreiv/wiki -- chat logs: https://libera.irclog.whitequark.org/~h~raspberrypi-internals -- bridged to matrix and discord
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<Ad0> clever, spi-bcm2835.c had a limit of 3 #define BCM2835_SPI_NUM_CS3 /* raise as necessary */
<Ad0> so I guess if you have a 4th CS you are fucked
<Ad0> patching the kernel and see how it goes
<Ad0> can you termine order of kernel modules loaded in KERNEL_MODULE_AUTOLOAD ?
<Ad0> determine*
<Ad0> or am I just lucky with the module names
<clever> Ad0: *looks*
<clever> Ad0: i dont see that in the linux source...
<Ad0> oops wrong channel on he last one
<Ad0> I'll find it
<Ad0> kernel 5.4
<clever> grep.app is amazing, the search is just instant
<Ad0> nice
<Ad0> yeah that was a yocto question , wrong chan haha
<clever> ahh
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<Ad0> seems like I have to upgrade to kernel 5.10 then... BCM2835_SPI_NUM_CS is 3 in 5.4 but I suspect there are several other limitations beyond 2 SPI slaves on spi0
<Ad0> because it aint workin