| Message ID | 20230522004513.168431-1-marex@denx.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [libdrm] modetest: Try and open device using drmOpenDevice first | expand |
diff --git a/tests/util/kms.c b/tests/util/kms.c index 34a84180..31087522 100644 --- a/tests/util/kms.c +++ b/tests/util/kms.c @@ -38,6 +38,7 @@ */ #include <errno.h> +#include <fcntl.h> #include <stdint.h> #include <stdio.h> #include <stdlib.h> @@ -142,6 +143,16 @@ int util_open(const char *device, const char *module) } else { unsigned int i; + printf("trying to open device '%s'...", device); + + fd = open(device, O_RDWR | O_CLOEXEC); + if (fd < 0) { + printf("failed\n"); + } else { + printf("done\n"); + return fd; + } + for (i = 0; i < ARRAY_SIZE(modules); i++) { printf("trying to open device '%s'...", modules[i]);
This way, it is possible to use modetest -D to specify a card in /dev/dri/cardN which is esp. useful on systems which have multiple cards, with identical modules and where it is otherwise impossible to discern the different cards via drmOpen(). One such example is i.MX8M Plus, which has three such cards, one for DSI, one for LVDS, and one for HDMI. Signed-off-by: Marek Vasut <marex@denx.de> --- tests/util/kms.c | 11 +++++++++++ 1 file changed, 11 insertions(+)