greybus: fw-management: Add ioctl to initiate mode-switch

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Once the interface firmware is loaded successfully to a module,
userspace can ask it to mode switch to the newly loaded firmware.

This patch provides a new ioctl to initiate mode switch.

Userspace can initiate a mode switch if it has previously loaded the
interface firmware successfully, otherwise the firmware core rejects it.

Also, once the mode-switch is initiated, disallow any more interactions
from the userspace.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Tested-by: Karthik Ravi Shankar <karthikrs@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

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This commit is contained in:

Viresh Kumar 2016-05-14 23:42:22 +05:30 • committed by Greg Kroah-Hartman

parent 013e665372

commit 04f0e6ebd1

2 changed files with 21 additions and 0 deletions

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20

drivers/staging/greybus/fw-management.c

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1

drivers/staging/greybus/greybus_firmware.h

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