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can: gs_usb: document the USER_ID feature

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The widely used open source firmware candleLight has optional support
for reading/writing of an user defined value into the device's flash.

This is indicated by the GS_CAN_FEATURE_USER_ID feature. The
corresponding request are GS_USB_BREQ_GET_USER_ID and
GS_USB_BREQ_SET_USER_ID.

This patch documents these values.

Link: https://lore.kernel.org/all/20220309124132.291861-11-mkl@pengutronix.de
Link: 1453d70dc9
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This commit is contained in:
Marc Kleine-Budde 2021-11-07 14:50:11 +01:00
parent 15564f821c
commit e0902cad4b
1 changed files with 4 additions and 0 deletions
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4
drivers/net/can/usb/gs_usb.c
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@ -40,6 +40,8 @@ enum gs_usb_breq {
GS_USB_BREQ_DEVICE_CONFIG,
GS_USB_BREQ_TIMESTAMP,
GS_USB_BREQ_IDENTIFY,
GS_USB_BREQ_GET_USER_ID,
GS_USB_BREQ_SET_USER_ID,
};
enum gs_can_mode {
@ -94,6 +96,7 @@ struct gs_device_config {
#define GS_CAN_MODE_ONE_SHOT BIT(3)
#define GS_CAN_MODE_HW_TIMESTAMP BIT(4)
/* GS_CAN_FEATURE_IDENTIFY BIT(5) */
/* GS_CAN_FEATURE_USER_ID BIT(6) */
struct gs_device_mode {
__le32 mode;
@ -124,6 +127,7 @@ struct gs_identify_mode {
#define GS_CAN_FEATURE_ONE_SHOT BIT(3)
#define GS_CAN_FEATURE_HW_TIMESTAMP BIT(4)
#define GS_CAN_FEATURE_IDENTIFY BIT(5)
#define GS_CAN_FEATURE_USER_ID BIT(6)
struct gs_device_bt_const {
__le32 feature;