On 2023-02-20 20:55, Randy Dunlap wrote:
On 2/20/23 09:49, Rafał Miłecki wrote:
+static int mmio_nvmem_write(void *context, unsigned int offset, void
*val, size_t bytes)
+{
+ struct mmio_nvmem *priv = context;
+
+ switch (priv->io_width) {
+ case 1:
+ case 2:
+ case 4:
+ return -EOPNOTSUPP;
I'm just curious: (since read supports those cases)
what size writes are typically used here?
And what value for priv->io_width?
Sorry, I really don't have any statistics on this or any real overview
of hardware that supports MMIO writes. It's probably a minority of
devices that allows it.
