lkml.org 
[lkml]   [2012]   [Aug]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCH v3] create sun sysfs file
    Hi Toshi,

    2012/07/31 0:18, Toshi Kani wrote:
    > On Mon, 2012-07-30 at 09:58 +0900, Yasuaki Ishimatsu wrote:
    >> Even if a device has _SUN method, there is no way to know the slot unique-ID.
    >> Thus the patch creates "sun" file in sysfs so that we can recognize it.
    >>
    >> Signed-off-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
    >
    > Hi Yasuaki,
    >
    > Thanks for the quick update. Looks good.
    >
    > Reviewed-by: Toshi Kani <toshi.kani@hp.com>

    Thanks you for reviewing my patch.

    Thanks,
    Yasuaki Ishimatsu

    >
    > -Toshi
    >
    >> ---
    >> drivers/acpi/scan.c | 25 +++++++++++++++++++++++++
    >> include/acpi/acpi_bus.h | 1 +
    >> 2 files changed, 26 insertions(+)
    >>
    >> Index: linux-3.5/include/acpi/acpi_bus.h
    >> ===================================================================
    >> --- linux-3.5.orig/include/acpi/acpi_bus.h 2012-07-27 10:20:22.722553439 +0900
    >> +++ linux-3.5/include/acpi/acpi_bus.h 2012-07-27 10:20:25.741555954 +0900
    >> @@ -209,6 +209,7 @@ struct acpi_device_pnp {
    >> struct list_head ids; /* _HID and _CIDs */
    >> acpi_device_name device_name; /* Driver-determined */
    >> acpi_device_class device_class; /* " */
    >> + unsigned long sun; /* _SUN */
    >> };
    >>
    >> #define acpi_device_bid(d) ((d)->pnp.bus_id)
    >> Index: linux-3.5/drivers/acpi/scan.c
    >> ===================================================================
    >> --- linux-3.5.orig/drivers/acpi/scan.c 2012-07-27 10:20:22.721522499 +0900
    >> +++ linux-3.5/drivers/acpi/scan.c 2012-07-30 09:52:32.581887304 +0900
    >> @@ -192,10 +192,21 @@ end:
    >> }
    >> static DEVICE_ATTR(path, 0444, acpi_device_path_show, NULL);
    >>
    >> +static ssize_t
    >> +acpi_device_sun_show(struct device *dev, struct device_attribute *attr, char *buf) {
    >> + struct acpi_device *acpi_dev = to_acpi_device(dev);
    >> + int result;
    >> +
    >> + result = sprintf(buf, "%lu\n", acpi_dev->pnp.sun);
    >> + return result;
    >> +}
    >> +static DEVICE_ATTR(sun, 0444, acpi_device_sun_show, NULL);
    >> +
    >> static int acpi_device_setup_files(struct acpi_device *dev)
    >> {
    >> acpi_status status;
    >> acpi_handle temp;
    >> + unsigned long long sun;
    >> int result = 0;
    >>
    >> /*
    >> @@ -217,6 +228,16 @@ static int acpi_device_setup_files(struc
    >> goto end;
    >> }
    >>
    >> + status = acpi_evaluate_integer(dev->handle, "_SUN", NULL, &sun);
    >> + if (ACPI_SUCCESS(status)) {
    >> + dev->pnp.sun = (unsigned long)sun;
    >> + result = device_create_file(&dev->dev, &dev_attr_sun);
    >> + if (result)
    >> + goto end;
    >> + } else {
    >> + dev->pnp.sun = (unsigned long)-1;
    >> + }
    >> +
    >> /*
    >> * If device has _EJ0, 'eject' file is created that is used to trigger
    >> * hot-removal function from userland.
    >> @@ -241,6 +262,10 @@ static void acpi_device_remove_files(str
    >> if (ACPI_SUCCESS(status))
    >> device_remove_file(&dev->dev, &dev_attr_eject);
    >>
    >> + status = acpi_get_handle(dev->handle, "_SUN", &temp);
    >> + if (ACPI_SUCCESS(status))
    >> + device_remove_file(&dev->dev, &dev_attr_sun);
    >> +
    >> device_remove_file(&dev->dev, &dev_attr_modalias);
    >> device_remove_file(&dev->dev, &dev_attr_hid);
    >> if (dev->handle)
    >>
    >
    >




    \
     
     \ /
      Last update: 2012-08-07 02:21    [W:0.056 / U:0.408 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site