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| author | Subhransu S. Prusty <subhransu.s.prusty@intel.com> | 2015-09-29 13:56:10 +0530 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2015-10-20 10:14:42 +0200 |
| commit | da23ac1e40ce844d1a9553906bdacce160af76f6 (patch) | |
| tree | c31206e3057a14282a3cd134c7e4b74d6500639d /scripts/mod/file2alias.c | |
| parent | 93ed8560e98afc486df94f5a6238c1f0894b38b8 (diff) | |
| download | linux-da23ac1e40ce844d1a9553906bdacce160af76f6.tar.bz2 | |
ALSA: hda - Add hduadio support to DEVTABLE
For generating modalias entries automatically, move the definition of
struct hda_device_id to linux/mod_devicetable.h and add the handling
of this record in file2alias helper. The new modalias is represented
with combination of vendor id, device id, and api version as
"hdaudio:vNrNaN".
This patch itself doesn't convert the existing modaliases. Since they
were added manually, this patch won't give any regression by itself at
this point.
[Modified the modalias format to adapt the api_version field, and drop
invalid ANY_ID definition by tiwai]
Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Reviewed-by: Vinod Koul <vinod.koul@intel.com>
Tested-by: Subhransu S Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'scripts/mod/file2alias.c')
| -rw-r--r-- | scripts/mod/file2alias.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c index 5f2088209132..fc51d4bff3f8 100644 --- a/scripts/mod/file2alias.c +++ b/scripts/mod/file2alias.c @@ -1250,6 +1250,23 @@ static int do_ulpi_entry(const char *filename, void *symval, } ADD_TO_DEVTABLE("ulpi", ulpi_device_id, do_ulpi_entry); +/* Looks like: hdaudio:vNrNaN */ +static int do_hda_entry(const char *filename, void *symval, char *alias) +{ + DEF_FIELD(symval, hda_device_id, vendor_id); + DEF_FIELD(symval, hda_device_id, rev_id); + DEF_FIELD(symval, hda_device_id, api_version); + + strcpy(alias, "hdaudio:"); + ADD(alias, "v", vendor_id != 0, vendor_id); + ADD(alias, "r", rev_id != 0, rev_id); + ADD(alias, "a", api_version != 0, api_version); + + add_wildcard(alias); + return 1; +} +ADD_TO_DEVTABLE("hdaudio", hda_device_id, do_hda_entry); + /* Does namelen bytes of name exactly match the symbol? */ static bool sym_is(const char *name, unsigned namelen, const char *symbol) { |