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Code Issues Releases Wiki Activity

Staging: ipack: Provide ID Prom through sysfs.

Browse source 
Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org>
Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jens Taprogge 2012-09-04 17:01:21 +02:00 committed by Greg Kroah-Hartman
parent 35eb97bb67
commit 5d72c848d2
1 changed files with 31 additions and 0 deletions
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31
drivers/staging/ipack/ipack.c
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@ -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),