Hi, > Some devices react on multiple addresses. To emulate this, we could > register them multiple times, but that is cumbersome. The AT24C16, e.g. > listens on 8 different addresses. > > Instead, introduce a device address mask that is applied on the > transmitted address before matching it against the stored one. Moreover, > the transmitted address is passed as additional parameter to the event > callback of the device.
This interface change ... > This implements I2C EEPROMs of the AT24Cxx series. Sizes from 1Kbit to > 1024Kbit are supported. Each EEPROM is backed by a block device. Its > size can be explicitly specified by selecting the exact device type > (required for sizes < 512, the blockdev sector size) or implicitly by > providing a block device image of the corresponding size. Device > addresses are built from the device number property. Write protection > can be configured by declaring the block device read-only. ... and this new device should be two separate patches (but best sent as patch series to make clear why the interface change is needed). cheers, Gerd
