github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-28 17:13:52 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

can: kvaser_usb: Expose device information via devlink info_get()

Browse Source 
Expose device information via devlink info_get():
  * Serial number
  * Firmware version
  * Hardware revision
  * EAN (product number)

Example output:
  $ devlink dev
  usb/1-1.2:1.0

  $ devlink dev info
  usb/1-1.2:1.0:
    driver kvaser_usb
    serial_number 1020
    versions:
        fixed:
          board.rev 1
          board.id 7330130009653
        running:
          fw 3.22.527

Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: Jimmy Assarsson <extja@kvaser.com>
Link: https://patch.msgid.link/20250725123452.41-10-extja@kvaser.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This commit is contained in:
Jimmy Assarsson 2025-07-25 14:34:50 +02:00 committed by Marc Kleine-Budde
parent 9505a83fc4
commit 8720aed90c
1 changed files with 51 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

51
drivers/net/can/usb/kvaser_usb/kvaser_usb_devlink.c
View File

@ -7,5 +7,56 @@
#include <net/devlink.h>
#define KVASER_USB_EAN_MSB 0x00073301
static int kvaser_usb_devlink_info_get(struct devlink *devlink,
struct devlink_info_req *req,
struct netlink_ext_ack *extack)
{
struct kvaser_usb *dev = devlink_priv(devlink);
char buf[] = "73301XXXXXXXXXX";
int ret;
if (dev->serial_number) {
snprintf(buf, sizeof(buf), "%u", dev->serial_number);
ret = devlink_info_serial_number_put(req, buf);
if (ret)
return ret;
}
if (dev->fw_version.major) {
snprintf(buf, sizeof(buf), "%u.%u.%u",
dev->fw_version.major,
dev->fw_version.minor,
dev->fw_version.build);
ret = devlink_info_version_running_put(req,
DEVLINK_INFO_VERSION_GENERIC_FW,
buf);
if (ret)
return ret;
}
if (dev->hw_revision) {
snprintf(buf, sizeof(buf), "%u", dev->hw_revision);
ret = devlink_info_version_fixed_put(req,
DEVLINK_INFO_VERSION_GENERIC_BOARD_REV,
buf);
if (ret)
return ret;
}
if (dev->ean[1] == KVASER_USB_EAN_MSB) {
snprintf(buf, sizeof(buf), "%x%08x", dev->ean[1], dev->ean[0]);
ret = devlink_info_version_fixed_put(req,
DEVLINK_INFO_VERSION_GENERIC_BOARD_ID,
buf);
if (ret)
return ret;
}
return 0;
}
const struct devlink_ops kvaser_usb_devlink_ops = {
.info_get = kvaser_usb_devlink_info_get,
};