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[PATCH] pcmcia: export stored values in sysfs 

Export the stored values instead of re-reading everything in the socket
information sysfs files, and make them accessible to all users, not only
to root.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
This commit is contained in:
Dominik Brodowski 2005-12-08 23:50:36 +01:00
parent 1371d3be04
commit 002dbb2d0d
1 changed files with 10 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
drivers/pcmcia/socket_sysfs.c
View File

@ -42,35 +42,28 @@
static ssize_t pccard_show_type(struct class_device *dev, char *buf) static ssize_t pccard_show_type(struct class_device *dev, char *buf)
{ {
int val;
struct pcmcia_socket *s = to_socket(dev); struct pcmcia_socket *s = to_socket(dev);
if (!(s->state & SOCKET_PRESENT)) if (!(s->state & SOCKET_PRESENT))
return -ENODEV; return -ENODEV;
s->ops->get_status(s, &val); if (s->state & SOCKET_CARDBUS)
if (val & SS_CARDBUS)
return sprintf(buf, "32-bit\n"); return sprintf(buf, "32-bit\n");
if (val & SS_DETECT) return sprintf(buf, "16-bit\n");
return sprintf(buf, "16-bit\n");
return sprintf(buf, "invalid\n");
} }
static CLASS_DEVICE_ATTR(card_type, 0400, pccard_show_type, NULL); static CLASS_DEVICE_ATTR(card_type, 0444, pccard_show_type, NULL);
static ssize_t pccard_show_voltage(struct class_device *dev, char *buf) static ssize_t pccard_show_voltage(struct class_device *dev, char *buf)
{ {
int val;
struct pcmcia_socket *s = to_socket(dev); struct pcmcia_socket *s = to_socket(dev);
if (!(s->state & SOCKET_PRESENT)) if (!(s->state & SOCKET_PRESENT))
return -ENODEV; return -ENODEV;
s->ops->get_status(s, &val); if (s->socket.Vcc)
if (val & SS_3VCARD) return sprintf(buf, "%d.%dV\n", s->socket.Vcc / 10,
return sprintf(buf, "3.3V\n"); s->socket.Vcc % 10);
if (val & SS_XVCARD) return sprintf(buf, "X.XV\n");
return sprintf(buf, "X.XV\n");
return sprintf(buf, "5.0V\n");
} }
static CLASS_DEVICE_ATTR(card_voltage, 0400, pccard_show_voltage, NULL); static CLASS_DEVICE_ATTR(card_voltage, 0444, pccard_show_voltage, NULL);
static ssize_t pccard_show_vpp(struct class_device *dev, char *buf) static ssize_t pccard_show_vpp(struct class_device *dev, char *buf)
{ {
@ -79,7 +72,7 @@ static ssize_t pccard_show_vpp(struct class_device *dev, char *buf)
return -ENODEV; return -ENODEV;
return sprintf(buf, "%d.%dV\n", s->socket.Vpp / 10, s->socket.Vpp % 10); return sprintf(buf, "%d.%dV\n", s->socket.Vpp / 10, s->socket.Vpp % 10);
} }
static CLASS_DEVICE_ATTR(card_vpp, 0400, pccard_show_vpp, NULL); static CLASS_DEVICE_ATTR(card_vpp, 0444, pccard_show_vpp, NULL);
static ssize_t pccard_show_vcc(struct class_device *dev, char *buf) static ssize_t pccard_show_vcc(struct class_device *dev, char *buf)
{ {
@ -88,7 +81,7 @@ static ssize_t pccard_show_vcc(struct class_device *dev, char *buf)
return -ENODEV; return -ENODEV;
return sprintf(buf, "%d.%dV\n", s->socket.Vcc / 10, s->socket.Vcc % 10); return sprintf(buf, "%d.%dV\n", s->socket.Vcc / 10, s->socket.Vcc % 10);
} }
static CLASS_DEVICE_ATTR(card_vcc, 0400, pccard_show_vcc, NULL); static CLASS_DEVICE_ATTR(card_vcc, 0444, pccard_show_vcc, NULL);
static ssize_t pccard_store_insert(struct class_device *dev, const char *buf, size_t count) static ssize_t pccard_store_insert(struct class_device *dev, const char *buf, size_t count)