From: Jens Taprogge <jens.tapro...@taprogge.org>
Signed-off-by: Jens Taprogge <jens.tapro...@taprogge.org>
Signed-off-by: Samuel Iglesias Gonsálvez <sigles...@igalia.com>
---
drivers/staging/ipack/ipack.c | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
diff --git a/drivers/staging/ipack/ipack.c b/drivers/staging/ipack/ipack.c
index a5ef28f..ff907fa 100644
--- a/drivers/staging/ipack/ipack.c
+++ b/drivers/staging/ipack/ipack.c
@@ -120,6 +120,36 @@ field##_show(struct device *dev, struct device_attribute
*attr, \
return sprintf(buf, format_string, idev->field); \
}
+static ssize_t id_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ unsigned int i, c, l, s;
+ struct ipack_device *idev = to_ipack_dev(dev);
+
+
+ switch (idev->id_format) {
+ case IPACK_ID_VERSION_1:
+ l = 0x7; s = 1; break;
+ case IPACK_ID_VERSION_2:
+ l = 0xf; s = 2; break;
+ default:
+ return -EIO;
+ }
+ c = 0;
+ for (i = 0; i < idev->id_avail; i++) {
+ if (i > 0) {
+ if ((i & l) == 0)
+ buf[c++] = '\n';
+ else if ((i & s) == 0)
+ buf[c++] = ' ';
+ }
+ sprintf(&buf[c], "%02x", idev->id[i]);
+ c += 2;
+ }
+ buf[c++] = '\n';
+ return c;
+}
+
static ssize_t
id_vendor_show(struct device *dev, struct device_attribute *attr, char *buf)
{
@@ -160,6 +190,7 @@ static ssize_t modalias_show(struct device *dev, struct
device_attribute *attr,
ipack_device_attr(id_format, "0x%hhu\n");
static struct device_attribute ipack_dev_attrs[] = {
+ __ATTR_RO(id),
__ATTR_RO(id_device),
__ATTR_RO(id_format),
__ATTR_RO(id_vendor),
--
1.7.10.4
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