diff options
Diffstat (limited to 'kms++/src/card.cpp')
| -rw-r--r-- | kms++/src/card.cpp | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/kms++/src/card.cpp b/kms++/src/card.cpp index 4632f22..04750af 100644 --- a/kms++/src/card.cpp +++ b/kms++/src/card.cpp @@ -7,6 +7,7 @@ #include <algorithm> #include <cerrno> #include <algorithm> +#include <sys/stat.h> #include <xf86drm.h> #include <xf86drmMode.h> @@ -18,6 +19,25 @@ using namespace std; namespace kms { +unique_ptr<Card> Card::open_modesetting_card() +{ + for (uint32_t i = 0; ; ++i) { + string path = "/dev/dri/card" + to_string(i); + + struct stat buffer; + if (stat(path.c_str(), &buffer)) + break; + + unique_ptr<Card> card = unique_ptr<Card>(new Card(path)); + + if (card->get_connectors().size() > 0 && + card->get_crtcs().size() > 0) + return card; + } + + throw runtime_error("No modesetting DRM card found"); +} + static int open_device_by_path(string path) { int fd = open(path.c_str(), O_RDWR | O_CLOEXEC); |