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[PATCH] pcmcia: runtime powermanagement interface

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With the "power/state" sysfs interface being deprecated, make another
one available which is compatible to what was discussed on the linux
PM mailinglist.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
This commit is contained in:
Dominik Brodowski
2006-01-10 19:19:37 +01:00
parent f542ff6dd1
commit db1019ca05
2 changed files with 60 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/pcmcia/socket_sysfs.c
+25
View File
@@ -98,6 +98,30 @@ static ssize_t pccard_store_insert(struct class_device *dev, const char *buf, si
}
static CLASS_DEVICE_ATTR(card_insert, 0200, NULL, pccard_store_insert);
static ssize_t pccard_show_card_pm_state(struct class_device *dev, char *buf)
{
struct pcmcia_socket *s = to_socket(dev);
return sprintf(buf, "%s\n", s->state & SOCKET_SUSPEND ? "off" : "on");
}
static ssize_t pccard_store_card_pm_state(struct class_device *dev, const char *buf, size_t count)
{
ssize_t ret = -EINVAL;
struct pcmcia_socket *s = to_socket(dev);
if (!count)
return -EINVAL;
if (!(s->state & SOCKET_SUSPEND) && !strncmp(buf, "off", 3))
ret = pcmcia_suspend_card(s);
else if ((s->state & SOCKET_SUSPEND) && !strncmp(buf, "on", 2))
ret = pcmcia_resume_card(s);
return ret ? -ENODEV : count;
}
static CLASS_DEVICE_ATTR(card_pm_state, 0644, pccard_show_card_pm_state, pccard_store_card_pm_state);
static ssize_t pccard_store_eject(struct class_device *dev, const char *buf, size_t count)
{
ssize_t ret;
@@ -320,6 +344,7 @@ static struct class_device_attribute *pccard_socket_attributes[] = {
&class_device_attr_card_vpp,
&class_device_attr_card_vcc,
&class_device_attr_card_insert,
&class_device_attr_card_pm_state,
&class_device_attr_card_eject,
&class_device_attr_card_irq_mask,
&class_device_attr_available_resources_setup_done,