Input: userio - allow setting other id values Previously, only the type value was settable. The proto value is used internally for choosing the right drivers, so we should expose it. The other values make sense to expose as well. Signed-off-by: Vicki Pfau <vi@endrift.com> Link: https://patch.msgid.link/20260522015040.3953472-2-vi@endrift.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
diff --git a/Documentation/input/userio.rst b/Documentation/input/userio.rst index 4159621..7aaaa62 100644 --- a/Documentation/input/userio.rst +++ b/Documentation/input/userio.rst
@@ -66,8 +66,27 @@ ~~~~~~~~~~~~~~~~~~~~~~~~ Sets the type of port we're emulating, where ``data`` is the port type being -set. Can be any of the macros from <linux/serio.h>. For example: SERIO_8042 -would set the port type to be a normal PS/2 port. +set. Can be any of the serio type macros from <linux/serio.h>. For example: +SERIO_8042 would set the port type to be a normal PS/2 port. + +USERIO_CMD_SET_PORT_PROTO +~~~~~~~~~~~~~~~~~~~~~~~~~ + +Sets the protocol of port we're emulating, where ``data`` is the protocol being +set. Can be any of the serio proto macros from <linux/serio.h>. For example: +SERIO_IFORCE would set the port type to be an I-Force serial joystick. + +USERIO_CMD_SET_PORT_ID +~~~~~~~~~~~~~~~~~~~~~~ + +Sets the ``id`` value on the identification of port we're emulating, where +``data`` is the value being set. + +USERIO_CMD_SET_PORT_EXTRA +~~~~~~~~~~~~~~~~~~~~~~~~~ + +Sets the ``extra`` value on the identification of port we're emulating, where +``data`` is the value being set. USERIO_CMD_SEND_INTERRUPT ~~~~~~~~~~~~~~~~~~~~~~~~~
diff --git a/drivers/input/serio/userio.c b/drivers/input/serio/userio.c index abca8cb..8c19975 100644 --- a/drivers/input/serio/userio.c +++ b/drivers/input/serio/userio.c
@@ -206,6 +206,36 @@ static int userio_execute_cmd(struct userio_device *userio, userio->serio->id.type = cmd->data; break; + case USERIO_CMD_SET_PORT_EXTRA: + if (userio->running) { + dev_warn(userio_misc.this_device, + "Can't change port extra on an already running userio instance\n"); + return -EBUSY; + } + + userio->serio->id.extra = cmd->data; + break; + + case USERIO_CMD_SET_PORT_ID: + if (userio->running) { + dev_warn(userio_misc.this_device, + "Can't change port id on an already running userio instance\n"); + return -EBUSY; + } + + userio->serio->id.id = cmd->data; + break; + + case USERIO_CMD_SET_PORT_PROTO: + if (userio->running) { + dev_warn(userio_misc.this_device, + "Can't change port proto on an already running userio instance\n"); + return -EBUSY; + } + + userio->serio->id.proto = cmd->data; + break; + case USERIO_CMD_SEND_INTERRUPT: if (!userio->running) { dev_warn(userio_misc.this_device,
diff --git a/include/uapi/linux/userio.h b/include/uapi/linux/userio.h index 98fe7e9..550c746 100644 --- a/include/uapi/linux/userio.h +++ b/include/uapi/linux/userio.h
@@ -27,7 +27,10 @@ enum userio_cmd_type { USERIO_CMD_REGISTER = 0, USERIO_CMD_SET_PORT_TYPE = 1, - USERIO_CMD_SEND_INTERRUPT = 2 + USERIO_CMD_SEND_INTERRUPT = 2, + USERIO_CMD_SET_PORT_EXTRA = 3, + USERIO_CMD_SET_PORT_ID = 4, + USERIO_CMD_SET_PORT_PROTO = 5, }; /*