From: Dominik Brodowski Date: Mon, 27 Jun 2005 23:29:01 +0000 (-0700) Subject: [PATCH] pcmcia: export modalias in sysfs X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=3248ff43f86493368b321376d447d84fa9a2737d;p=GitHub%2Fmt8127%2Fandroid_kernel_alcatel_ttab.git [PATCH] pcmcia: export modalias in sysfs Provide a "modalias" entry in sysfs for PCMCIA devices. Signed-off-by: Dominik Brodowski Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c index f018d26f1817..cabddd49f6ff 100644 --- a/drivers/pcmcia/ds.c +++ b/drivers/pcmcia/ds.c @@ -847,9 +847,29 @@ pcmcia_device_stringattr(prod_id2, prod_id[1]); pcmcia_device_stringattr(prod_id3, prod_id[2]); pcmcia_device_stringattr(prod_id4, prod_id[3]); +static ssize_t modalias_show(struct device *dev, char *buf) +{ + struct pcmcia_device *p_dev = to_pcmcia_dev(dev); + int i; + u32 hash[4] = { 0, 0, 0, 0}; + + /* calculate hashes */ + for (i=0; i<4; i++) { + if (!p_dev->prod_id[i]) + continue; + hash[i] = crc32(0,p_dev->prod_id[i],strlen(p_dev->prod_id[i])); + } + return sprintf(buf, "pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" + "pa%08Xpb%08Xpc%08Xpd%08X\n", + p_dev->has_manf_id ? p_dev->manf_id : 0, + p_dev->has_card_id ? p_dev->card_id : 0, + p_dev->has_func_id ? p_dev->func_id : 0, + p_dev->func, p_dev->device_no, + hash[0], hash[1], hash[2], hash[3]); +} -static ssize_t pcmcia_store_allow_func_id_match (struct device * dev, struct device_attribute *attr, - const char * buf, size_t count) +static ssize_t pcmcia_store_allow_func_id_match(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) { struct pcmcia_device *p_dev = to_pcmcia_dev(dev); if (!count) @@ -873,6 +893,7 @@ static struct device_attribute pcmcia_dev_attrs[] = { __ATTR_RO(prod_id2), __ATTR_RO(prod_id3), __ATTR_RO(prod_id4), + __ATTR_RO(modalias), __ATTR(allow_func_id_match, 0200, NULL, pcmcia_store_allow_func_id_match), __ATTR_NULL, };