Russell King - ARM Linux <[email protected]> writes: >> .buf = "something", >> ... >> random data will be sent because buf is not DMA mapable ("something" is >> located in the .strtab section within module memory). MXS has a memory >> layout like > > DMA buffers must be located in lowmem *always*. This means placing them > in the .data segment does not work. USB has been through this already > and it's well known there...
Yes; I know about USB and this requirement is explicitly mentioned in the 'struct urb' documentation. But I can not find something similar for i2c_msg and lot of i2c drivers are working with non DMA mapable buffers. Enrico -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
