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Add support for UCSI commands through the following debugfs:
# /sys/kernel/debug/usb/ucsi/$UCSI_DEVICE/command
# /sys/kernel/debug/usb/ucsi/$UCSI_DEVICE/response
Eg: To execute UCSI GetCapabilities:
# echo 0x6 > /sys/kernel/debug/usb/ucsi/<ucsi device>/command
Then read the result,
# cat /sys/kernel/debug/usb/ucsi/<ucsi device>/response
0x02000320000000020000ff0400000445
UCSI command will be written into the command file and the
response for the command can be viewed under the response file.
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Saranya Gopal <saranya.gopal@intel.com>
Co-developed-by: Rajaram Regupathy <rajaram.regupathy@intel.com>
Signed-off-by: Rajaram Regupathy <rajaram.regupathy@intel.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20230807105205.742819-1-saranya.gopal@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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|---|---|---|
| .. | ||
| altmodes | ||
| mux | ||
| tcpm | ||
| tipd | ||
| ucsi | ||
| anx7411.c | ||
| bus.c | ||
| bus.h | ||
| class.c | ||
| class.h | ||
| hd3ss3220.c | ||
| Kconfig | ||
| Makefile | ||
| mux.c | ||
| mux.h | ||
| pd.c | ||
| pd.h | ||
| port-mapper.c | ||
| retimer.c | ||
| retimer.h | ||
| rt1719.c | ||
| stusb160x.c | ||
| wusb3801.c | ||