kernel_samsung_sm7125

jenna

History

Jean Delvare b5527a7766 i2c: Add SMBus alert support SMBus alert support. The SMBus alert protocol allows several SMBus slave devices to share a single interrupt pin on the SMBus master, while still allowing the master to know which slave triggered the interrupt. This is based on preliminary work by David Brownell. The key difference between David's implementation and mine is that his was part of i2c-core, while mine is split into a separate, standalone module named i2c-smbus. The i2c-smbus module is meant to include support for all SMBus extensions to the I2C protocol in the future. The benefit of this approach is a zero cost for I2C bus segments which do not need SMBus alert support. Where David's implementation increased the size of struct i2c_adapter by 7% (40 bytes on i386), mine doesn't touch it. Where David's implementation added over 150 lines of code to i2c-core (+10%), mine doesn't touch it. The only change that touches all the users of the i2c subsystem is a new callback in struct i2c_driver (common to both implementations.) I seem to remember Trent was worried about the footprint of David'd implementation, hopefully mine addresses the issue. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Jonathan Cameron <jic23@cam.ac.uk> Cc: David Brownell <dbrownell@users.sourceforge.net> Cc: Trent Piepho <tpiepho@freescale.com>		15 years ago
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acpi	Merge branch 'acpica' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6	15 years ago
asm-generic	…
crypto	…
drm	…
keys	…
linux	i2c: Add SMBus alert support	15 years ago
math-emu	…
media	V4L/DVB: tuner-types: Add Sony BTF-Pxn01Z tuner type used on GigaPocket cards	15 years ago
mtd	…
net	…
pcmcia	…
rdma	…
rxrpc	…
scsi	…
sound	Merge branch 'topic/asoc' into for-linus	15 years ago
trace	Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	15 years ago
video	…
xen	…
Kbuild	…