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Commit 002dbb2d authored by Dominik Brodowski's avatar Dominik Brodowski
Browse files

[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: default avatarDominik Brodowski <linux@dominikbrodowski.net>
parent 1371d3be

drivers/pcmcia/socket_sysfs.c

+10 −17
Original line number Diff line number Diff line
@@ -42,35 +42,28 @@ 


static ssize_t pccard_show_type(struct class_device *dev, char *buf)

{

	int val;

	struct pcmcia_socket *s = to_socket(dev);



	if (!(s->state & SOCKET_PRESENT))

		return -ENODEV;

	s->ops->get_status(s, &val);

	if (val & SS_CARDBUS)

	if (s->state & SOCKET_CARDBUS)

		return sprintf(buf, "32-bit\n");

	if (val & SS_DETECT)

	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)

{

	int val;

	struct pcmcia_socket *s = to_socket(dev);



	if (!(s->state & SOCKET_PRESENT))

		return -ENODEV;

	s->ops->get_status(s, &val);

	if (val & SS_3VCARD)

		return sprintf(buf, "3.3V\n");

	if (val & SS_XVCARD)

	if (s->socket.Vcc)

		return sprintf(buf, "%d.%dV\n", s->socket.Vcc / 10,

			       s->socket.Vcc % 10);

	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)

{
@@ -79,7 +72,7 @@ static ssize_t pccard_show_vpp(struct class_device *dev, char *buf) 
		return -ENODEV;

	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)

{
@@ -88,7 +81,7 @@ static ssize_t pccard_show_vcc(struct class_device *dev, char *buf) 
		return -ENODEV;

	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)