From: Dominik Brodowski Allow to modify the per-socket irq_mask via sysfs. Note that you can only clear bits from the mask, but not re-add bits. Signed-off-by: Dominik Brodowski Signed-off-by: Andrew Morton --- 25-akpm/drivers/pcmcia/socket_sysfs.c | 28 ++++++++++++++++++++++++++++ 1 files changed, 28 insertions(+) diff -puN drivers/pcmcia/socket_sysfs.c~pcmcia-modify-irq_mask-via-sysfs drivers/pcmcia/socket_sysfs.c --- 25/drivers/pcmcia/socket_sysfs.c~pcmcia-modify-irq_mask-via-sysfs Tue Jan 11 14:13:39 2005 +++ 25-akpm/drivers/pcmcia/socket_sysfs.c Tue Jan 11 14:13:39 2005 @@ -122,6 +122,33 @@ static ssize_t pccard_store_eject(struct static CLASS_DEVICE_ATTR(card_eject, 0200, NULL, pccard_store_eject); +static ssize_t pccard_show_irq_mask(struct class_device *dev, char *buf) +{ + struct pcmcia_socket *s = to_socket(dev); + return sprintf(buf, "0x%04x\n", s->irq_mask); +} + +static ssize_t pccard_store_irq_mask(struct class_device *dev, const char *buf, size_t count) +{ + ssize_t ret; + struct pcmcia_socket *s = to_socket(dev); + u32 mask; + + if (!count) + return -EINVAL; + + ret = sscanf (buf, "0x%x\n", &mask); + + if (ret == 1) { + s->irq_mask &= mask; + ret = 0; + } + + return ret ? ret : count; +} +static CLASS_DEVICE_ATTR(card_irq_mask, 0600, pccard_show_irq_mask, pccard_store_irq_mask); + + static struct class_device_attribute *pccard_socket_attributes[] = { &class_device_attr_card_type, &class_device_attr_card_voltage, @@ -129,6 +156,7 @@ static struct class_device_attribute *pc &class_device_attr_card_vcc, &class_device_attr_card_insert, &class_device_attr_card_eject, + &class_device_attr_card_irq_mask, NULL, }; _