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Reqrite bitbanging I2C implementation. New code improves stop/start
condition handling, and gives more accurate input line level.
Introduce intermediate abstraction layer for I2C bitbanging that
is not connected via a GPIO port.
Signed-off-by: Paul Brook <paul@codesourcery.com>
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Sorry folks, but it has to be. One more of these invasive qdev patches.
We have a serious design bug in the qdev interface: device init
callbacks can't signal failure because the init() callback has no
return value. This patch fixes it.
We have already one case in-tree where this is needed:
Try -device virtio-blk-pci (without drive= specified) and watch qemu
segfault. This patch fixes it.
With usb+scsi being converted to qdev we'll get more devices where the
init callback can fail for various reasons.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Signed-off-by: Benoit Canet <benoit.canet@gmail.com>
Signed-off-by: Andrzej Zaborowski <balrogg@gmail.com>
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