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authorJanne Grunau <janne-dvb@grunau.be>2008-04-10 02:13:13 +0400
committerMauro Carvalho Chehab <mchehab@infradead.org>2008-04-24 21:08:00 +0400
commit78e92006f410a4044f8c1760c25ac9d11d259aa2 (patch)
tree293de8abe261420df2db5e12936ec2721ea52c7c /drivers/media/dvb/dvb-usb/gl861.c
parent9950c1b5b4b86d4aae12853c2f0a0ef11d976764 (diff)
downloadlinux-78e92006f410a4044f8c1760c25ac9d11d259aa2.tar.xz
V4L/DVB (7538): Adds selectable adapter numbers as per module option
The adapter_nr module options can be used to allocate static adapter numbers on a driver level. It avoids problems with changing DVB apapter numbers after warm/cold boot or device unplugging and repluging. Each driver holds DVB_MAX_ADAPTER long array of the preferred order of adapter numbers. options dvb-usb-dib0700 adapter_nr=7,6,5,4,3,2,1,0 would result in a reversed allocation of adapter numbers. With adapter_nr=2,5 it tries first to get adapter number 2 and 5. If both are already in use it will allocate the lowest free adapter number. Signed-off-by: Janne Grunau <janne-dvb@grunau.be> Acked-by: Hermann Pitton <hermann.pitton@arcor.de> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/dvb/dvb-usb/gl861.c')
-rw-r--r--drivers/media/dvb/dvb-usb/gl861.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/media/dvb/dvb-usb/gl861.c b/drivers/media/dvb/dvb-usb/gl861.c
index 6b99d9f4d5b3..0a8ac64a4e33 100644
--- a/drivers/media/dvb/dvb-usb/gl861.c
+++ b/drivers/media/dvb/dvb-usb/gl861.c
@@ -16,6 +16,8 @@ static int dvb_usb_gl861_debug;
module_param_named(debug,dvb_usb_gl861_debug, int, 0644);
MODULE_PARM_DESC(debug, "set debugging level (1=rc (or-able))." DVB_USB_DEBUG_STATUS);
+DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
+
static int gl861_i2c_msg(struct dvb_usb_device *d, u8 addr,
u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen)
{
@@ -140,7 +142,9 @@ static int gl861_probe(struct usb_interface *intf,
if (intf->num_altsetting < 2)
return -ENODEV;
- if ((ret = dvb_usb_device_init(intf, &gl861_properties, THIS_MODULE, &d)) == 0) {
+ ret = dvb_usb_device_init(intf, &gl861_properties, THIS_MODULE, &d,
+ adapter_nr);
+ if (ret == 0) {
alt = usb_altnum_to_altsetting(intf, 0);
if (alt == NULL) {