"Write from register" and "read from register" SPI implementation.

[EngeenerAtendee]

Hi guys!

I'm trying to implement two functions mentioned in the topic.

My code:

def cam_spi_write(address, value, hspi, cspin):
    modebit = b'\x80'
    cspin.value(0)
    hspi.write(modebit[0])
    hspi.write(address[0])
    hspi.write(value[0])
    cspin.value(1)

def cam_spi_read(address, hspi, cspin):
    cspin.value(0)
    maskbits = b'\x9f'
    hspi.write(b'\x80')
    hspi.write(address[0])
    hspi.write(maskbits[0])
    buf = hspi.read(1)
    return (buf)

But it doesn't work. I've used an SPI instructions tutorial:
Link
But somewhere I'm wrong. Has anyone tried to do that?

[EngeenerAtendee]

I've made some steps. Code looks now like :

def cam_spi_write_register(addrs, value, spi, cs):
    mask = b'\x80'
    addres = bytes([mask[0] | addrs[0]])
    cs.value(0)
    spi.write(addres[0])
    machin
    spi.write(value[0])
    cs.value(1)

def cam_spi_read_single(addrs, spi, cs):
    cs.value(0)
    spi.write(addrs[0])
    buf = spi.read(1)
    cs.value(1)
    print(buf)
    return(buf)

but it still don't work. I made it working for a while but i forgot to push it on my repo and all code is lost...